diff --git a/capchild/capture_sync.c b/capchild/capture_sync.c
index f15110f995..5080907c99 100644
--- a/capchild/capture_sync.c
+++ b/capchild/capture_sync.c
@@ -1332,7 +1332,7 @@ sync_interface_set_80211_chan(const gchar *iface, const char *freq, const gchar
     if (type)
         opt = g_strdup_printf("%s,%s,%s,%s", freq, type, center_freq1, center_freq2);
     else
-        opt = g_strdup_printf("%s", freq);
+        opt = g_strdup(freq);
 
     if (!opt) {
         *primary_msg = g_strdup("Out of mem.");
diff --git a/caputils/airpcap_loader.c b/caputils/airpcap_loader.c
index 4501d5d45f..8a5c7e10af 100644
--- a/caputils/airpcap_loader.c
+++ b/caputils/airpcap_loader.c
@@ -940,9 +940,9 @@ airpcap_get_if_string_number(airpcap_if_info_t* if_info)
     if (a == 0)
     {
         if (g_ascii_strcasecmp(if_info->name,AIRPCAP_DEVICE_ANY_EXTRACT_STRING)!=0)
-            number = g_strdup_printf("??");
+            number = g_strdup("??");
         else
-            number = g_strdup_printf(AIRPCAP_CHANNEL_ANY_NAME);
+            number = g_strdup(AIRPCAP_CHANNEL_ANY_NAME);
     }
     else
     {
diff --git a/echld/echld-int.h b/echld/echld-int.h
index 78c6032dc0..19dadd8213 100644
--- a/echld/echld-int.h
+++ b/echld/echld-int.h
@@ -176,7 +176,7 @@ char* paramset_get_params_list(param_t* paramsets, const char* fmt) G_GNUC_PRINT
  static echld_bool_t param_set_ ## Name (char* val , char** err _U_) {  char* p; int temp = (int)strtol(val, &p, 10); if (p<=val) { *err = g_strdup("not an integer"); return FALSE; } else {	param_ ## Name = temp; return TRUE; } }
 
 #define PARAM_BOOL(Name, Default) static gboolean param_ ## Name = Default;  \
- static char* param_get_ ## Name (char** err _U_ ) { return  g_strdup_printf("%s",param_ ## Name ? "TRUE" : "FALSE"); } \
+ static char* param_get_ ## Name (char** err _U_ ) { return  g_strdup(param_ ## Name ? "TRUE" : "FALSE"); } \
  static echld_bool_t param_set_ ## Name (char* val , char** err _U_) { param_ ## Name = (*val == 'T' || *val == 't') ? TRUE : FALSE; return TRUE;}
 
 #define PARAM(Name,Desc) {#Name, param_get_ ## Name, param_set_ ## Name, Desc}
diff --git a/epan/dissectors/asn1/ldap/ldap.cnf b/epan/dissectors/asn1/ldap/ldap.cnf
index 452c6261f1..0e0861b4ce 100644
--- a/epan/dissectors/asn1/ldap/ldap.cnf
+++ b/epan/dissectors/asn1/ldap/ldap.cnf
@@ -572,7 +572,7 @@ ldap_conv_info_t *ldap_info;
 
 	if(and_filter_string) {
 		proto_item_append_text(it, "%%s", and_filter_string);
-		Filter_string=wmem_strdup_printf(wmem_packet_scope(), "%%s",and_filter_string);
+		Filter_string=wmem_strdup(wmem_packet_scope(), and_filter_string);
 	}
 	and_filter_string=old_and_filter_string;
 
@@ -596,7 +596,7 @@ ldap_conv_info_t *ldap_info;
 %(DEFAULT_BODY)s
 	if(or_filter_string) {
 		proto_item_append_text(it, "%%s", or_filter_string);
-		Filter_string=wmem_strdup_printf(wmem_packet_scope(), "%%s",or_filter_string);
+		Filter_string=wmem_strdup(wmem_packet_scope(), or_filter_string);
 	}
 	or_filter_string=old_or_filter_string;
 
diff --git a/epan/dissectors/asn1/ros/ros-err.cnf b/epan/dissectors/asn1/ros/ros-err.cnf
index 76aa331dcb..e9e9bce243 100644
--- a/epan/dissectors/asn1/ros/ros-err.cnf
+++ b/epan/dissectors/asn1/ros/ros-err.cnf
@@ -25,7 +25,7 @@
     else if (actx->rose_ctx->d.code == 1)
       descr = wmem_strdup_printf(wmem_packet_scope(), "ERR: %s", actx->rose_ctx->d.code_global);
   } else {
-    descr = wmem_strdup_printf(wmem_packet_scope(), "ERR:");
+    descr = wmem_strdup(wmem_packet_scope(), "ERR:");
   }
 
   if (actx->rose_ctx->apdu_depth >= 0)
diff --git a/epan/dissectors/asn1/ros/ros-inv.cnf b/epan/dissectors/asn1/ros/ros-inv.cnf
index 1bc9251c49..acbcaff2d2 100644
--- a/epan/dissectors/asn1/ros/ros-inv.cnf
+++ b/epan/dissectors/asn1/ros/ros-inv.cnf
@@ -25,7 +25,7 @@
     else if (actx->rose_ctx->d.code == 1)
       descr = wmem_strdup_printf(wmem_packet_scope(), "INV: %s", actx->rose_ctx->d.code_global);
   } else {
-    descr = wmem_strdup_printf(wmem_packet_scope(), "INV:");
+    descr = wmem_strdup(wmem_packet_scope(), "INV:");
   }
 
   if (actx->rose_ctx->apdu_depth >= 0)
diff --git a/epan/dissectors/asn1/ros/ros-res.cnf b/epan/dissectors/asn1/ros/ros-res.cnf
index f0900906cb..69b09f82a6 100644
--- a/epan/dissectors/asn1/ros/ros-res.cnf
+++ b/epan/dissectors/asn1/ros/ros-res.cnf
@@ -26,7 +26,7 @@
     else if (actx->rose_ctx->d.code == 1)
       descr = wmem_strdup_printf(wmem_packet_scope(), "RES: %s", actx->rose_ctx->d.code_global);
   } else {
-    descr = wmem_strdup_printf(wmem_packet_scope(), "RES:");
+    descr = wmem_strdup(wmem_packet_scope(), "RES:");
   }
 
   if (actx->rose_ctx->apdu_depth >= 0)
diff --git a/epan/dissectors/file-pcapng.c b/epan/dissectors/file-pcapng.c
index 51c7c67a25..098b076662 100644
--- a/epan/dissectors/file-pcapng.c
+++ b/epan/dissectors/file-pcapng.c
@@ -680,8 +680,7 @@ static gint dissect_options(proto_tree *tree, packet_info *pinfo,
                 set_address_tvb(&addr, AT_IPv4, 4, tvb, offset);
                 offset += 4;
 
-                str = wmem_strdup_printf(wmem_packet_scope(), "%s",
-                        address_to_display(wmem_packet_scope(),  &addr));
+                str = address_to_display(wmem_packet_scope(), &addr);
 
                 break;
             case 0x0004:
@@ -695,8 +694,7 @@ static gint dissect_options(proto_tree *tree, packet_info *pinfo,
                 set_address_tvb(&addr, AT_IPv6, 16, tvb, offset);
                 offset += 16;
 
-                str = wmem_strdup_printf(wmem_packet_scope(), "%s",
-                        address_to_display(wmem_packet_scope(),  &addr));
+                str = address_to_display(wmem_packet_scope(),  &addr);
 
                 break;
             default:
@@ -1142,8 +1140,7 @@ static gint dissect_block(proto_tree *tree, packet_info *pinfo, tvbuff_t *tvb,
                     }
                 }
 
-                str = wmem_strdup_printf(wmem_packet_scope(), "%s",
-                        address_to_display(wmem_packet_scope(),  &addr));
+                str = address_to_display(wmem_packet_scope(), &addr);
                 break;
             case 0x0002: /* IPv6 Record */
                 if (record_length < 17) {
@@ -1168,8 +1165,7 @@ static gint dissect_block(proto_tree *tree, packet_info *pinfo, tvbuff_t *tvb,
                     }
                 }
 
-                str = wmem_strdup_printf(wmem_packet_scope(), "%s",
-                        address_to_display(wmem_packet_scope(),  &addr));
+                str = address_to_display(wmem_packet_scope(), &addr);
 
                 break;
             default:
diff --git a/epan/dissectors/packet-dcerpc-spoolss.c b/epan/dissectors/packet-dcerpc-spoolss.c
index 3327f8c9a9..8365817769 100644
--- a/epan/dissectors/packet-dcerpc-spoolss.c
+++ b/epan/dissectors/packet-dcerpc-spoolss.c
@@ -958,8 +958,8 @@ SpoolssSetPrinterData_q(tvbuff_t *tvb, int offset,
 	/* GetPrinterDataEx() stores the key/value in se_data */
 	if(!pinfo->fd->flags.visited){
 		if(!dcv->se_data){
-			dcv->se_data = wmem_strdup_printf(wmem_file_scope(),
-				"%s", value_name?value_name:"");
+			dcv->se_data = wmem_strdup(wmem_file_scope(),
+				value_name?value_name:"");
 		}
 	}
 
@@ -2448,8 +2448,8 @@ SpoolssOpenPrinterEx_q(tvbuff_t *tvb, int offset,
 	/* OpenPrinterEx() stores the key/value in se_data */
 	if(!pinfo->fd->flags.visited){
 		if(!dcv->se_data){
-			dcv->se_data = wmem_strdup_printf(wmem_file_scope(),
-				"%s", name?name:"");
+			dcv->se_data = wmem_strdup(wmem_file_scope(),
+				name?name:"");
 		}
 	}
 
diff --git a/epan/dissectors/packet-devicenet.c b/epan/dissectors/packet-devicenet.c
index b79af89aa9..8e6dd66b41 100644
--- a/epan/dissectors/packet-devicenet.c
+++ b/epan/dissectors/packet-devicenet.c
@@ -133,7 +133,7 @@ static gboolean uat_devicenet_record_update_cb(void* r, char** err) {
     uat_devicenet_record_t* rec = (uat_devicenet_record_t *)r;
 
     if (rec->mac_id > 63) {
-        *err = g_strdup_printf("MAC ID must be between 0-63");
+        *err = g_strdup("MAC ID must be between 0-63");
         return FALSE;
     }
     return TRUE;
diff --git a/epan/dissectors/packet-diameter_3gpp.c b/epan/dissectors/packet-diameter_3gpp.c
index e5a53232c7..d65a4ffa70 100644
--- a/epan/dissectors/packet-diameter_3gpp.c
+++ b/epan/dissectors/packet-diameter_3gpp.c
@@ -315,8 +315,7 @@ dissect_diameter_3gpp_imeisv(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *
 
         item = proto_tree_add_item(tree, hf_diameter_3gpp_imeisv, tvb, offset, length, ENC_UTF_8 | ENC_NA);
         PROTO_ITEM_SET_GENERATED(item);
-        diam_sub_dis->avp_str = wmem_strdup_printf(wmem_packet_scope(), "%s",
-            tvb_get_string_enc(wmem_packet_scope(), tvb, offset, length, ENC_UTF_8 | ENC_NA));
+        diam_sub_dis->avp_str = tvb_get_string_enc(wmem_packet_scope(), tvb, offset, length, ENC_UTF_8 | ENC_NA);
     }
 
     return length;
@@ -390,8 +389,7 @@ dissect_diameter_3gpp_af_application_identifier(tvbuff_t *tvb, packet_info *pinf
 
         item = proto_tree_add_item(tree, hf_diameter_3gpp_af_application_identifier, tvb, offset, length, ENC_UTF_8 | ENC_NA);
         PROTO_ITEM_SET_GENERATED(item);
-        diam_sub_dis->avp_str = wmem_strdup_printf(wmem_packet_scope(), "%s",
-            tvb_get_string_enc(wmem_packet_scope(), tvb, offset, length, ENC_UTF_8 | ENC_NA));
+        diam_sub_dis->avp_str = tvb_get_string_enc(wmem_packet_scope(), tvb, offset, length, ENC_UTF_8 | ENC_NA);
     }
 
     return length;
@@ -416,8 +414,7 @@ dissect_diameter_3gpp_af_charging_identifier(tvbuff_t *tvb, packet_info *pinfo _
 
         item = proto_tree_add_item(tree, hf_diameter_3gpp_af_charging_identifier, tvb, offset, length, ENC_UTF_8 | ENC_NA);
         PROTO_ITEM_SET_GENERATED(item);
-        diam_sub_dis->avp_str = wmem_strdup_printf(wmem_packet_scope(), "%s",
-            tvb_get_string_enc(wmem_packet_scope(), tvb, offset, length, ENC_UTF_8 | ENC_NA));
+        diam_sub_dis->avp_str = tvb_get_string_enc(wmem_packet_scope(), tvb, offset, length, ENC_UTF_8 | ENC_NA);
     }
 
     return length;
@@ -1012,8 +1009,7 @@ dissect_diameter_3gpp_charging_rule_name(tvbuff_t *tvb, packet_info *pinfo _U_,
 
         item = proto_tree_add_item(tree, hf_diameter_3gpp_charging_rule_name, tvb, offset, length, ENC_UTF_8 | ENC_NA);
         PROTO_ITEM_SET_GENERATED(item);
-        diam_sub_dis->avp_str = wmem_strdup_printf(wmem_packet_scope(), "%s",
-            tvb_get_string_enc(wmem_packet_scope(), tvb, offset, length, ENC_UTF_8 | ENC_NA));
+        diam_sub_dis->avp_str = tvb_get_string_enc(wmem_packet_scope(), tvb, offset, length, ENC_UTF_8 | ENC_NA);
     }
 
     return length;
diff --git a/epan/dissectors/packet-dof.c b/epan/dissectors/packet-dof.c
index 0bb31b2fa8..e3d1fcef8b 100644
--- a/epan/dissectors/packet-dof.c
+++ b/epan/dissectors/packet-dof.c
@@ -3365,30 +3365,30 @@ static void secmode_list_update_cb(void *r, const char **err)
     size = (guint32)strlen(rec->domain);
     if (!VALIDHEX(rec->domain[0]) && !dof_oid_create_internal(rec->domain, &size, NULL))
     {
-        *err = wmem_strdup_printf(wmem_packet_scope(), "Invalid domain [must be valid OID].");
+        *err = wmem_strdup(wmem_packet_scope(), "Invalid domain [must be valid OID].");
         return;
     }
     else if (!count_hex_bytes(rec->domain))
     {
-        *err = wmem_strdup_printf(wmem_packet_scope(), "Invalid domain [must be valid OID].");
+        *err = wmem_strdup(wmem_packet_scope(), "Invalid domain [must be valid OID].");
         return;
     }
 
     size = (guint32)strlen(rec->identity);
     if (!VALIDHEX(rec->identity[0]) && !dof_oid_create_internal(rec->identity, &size, NULL))
     {
-        *err = wmem_strdup_printf(wmem_packet_scope(), "Invalid identity [must be valid OID].");
+        *err = wmem_strdup(wmem_packet_scope(), "Invalid identity [must be valid OID].");
         return;
     }
     else if (!count_hex_bytes(rec->identity))
     {
-        *err = wmem_strdup_printf(wmem_packet_scope(), "Invalid identity [must be valid OID].");
+        *err = wmem_strdup(wmem_packet_scope(), "Invalid identity [must be valid OID].");
         return;
     }
 
     if (count_hex_bytes(rec->kek) != 32)
     {
-        *err = wmem_strdup_printf(wmem_packet_scope(), "Invalid KEK [must be 32 byte key].");
+        *err = wmem_strdup(wmem_packet_scope(), "Invalid KEK [must be 32 byte key].");
         return;
     }
 }
@@ -3455,7 +3455,7 @@ static void seckey_list_update_cb(void *r, const char **err)
     *err = NULL;
     if (count_hex_bytes(rec->key) != 32)
     {
-        *err = wmem_strdup_printf(wmem_packet_scope(), "Invalid secret [must be 32 bytes].");
+        *err = wmem_strdup(wmem_packet_scope(), "Invalid secret [must be 32 bytes].");
         return;
     }
 }
@@ -3507,13 +3507,13 @@ static void identsecret_list_update_cb(void *r, const char **err)
     {
         if (dof_oid_create_internal(rec->domain, &size, NULL))
         {
-            *err = wmem_strdup_printf(wmem_packet_scope(), "Invalid domain [must be valid OID].");
+            *err = wmem_strdup(wmem_packet_scope(), "Invalid domain [must be valid OID].");
             return;
         }
     }
     else if (!count_hex_bytes(rec->domain))
     {
-        *err = wmem_strdup_printf(wmem_packet_scope(), "Invalid domain [must be valid OID].");
+        *err = wmem_strdup(wmem_packet_scope(), "Invalid domain [must be valid OID].");
         return;
     }
 
@@ -3522,19 +3522,19 @@ static void identsecret_list_update_cb(void *r, const char **err)
     {
         if (dof_oid_create_internal(rec->identity, &size, NULL))
         {
-            *err = wmem_strdup_printf(wmem_packet_scope(), "Invalid identity [must be valid OID].");
+            *err = wmem_strdup(wmem_packet_scope(), "Invalid identity [must be valid OID].");
             return;
         }
     }
     else if (!count_hex_bytes(rec->identity))
     {
-        *err = wmem_strdup_printf(wmem_packet_scope(), "Invalid identity [must be valid OID].");
+        *err = wmem_strdup(wmem_packet_scope(), "Invalid identity [must be valid OID].");
         return;
     }
 
     if (count_hex_bytes(rec->secret) != 32)
     {
-        *err = wmem_strdup_printf(wmem_packet_scope(), "Invalid secret [must be 32 byte key].");
+        *err = wmem_strdup(wmem_packet_scope(), "Invalid secret [must be 32 byte key].");
         return;
     }
 }
@@ -3719,7 +3719,7 @@ static gboolean identsecret_chk_cb(void *r _U_, const char *p _U_, unsigned len
 
     if (!num_protos)
     {
-        *err = wmem_strdup_printf(wmem_packet_scope(), "No protocols given");
+        *err = wmem_strdup(wmem_packet_scope(), "No protocols given");
         return FALSE;
     }
 
diff --git a/epan/dissectors/packet-dtls.c b/epan/dissectors/packet-dtls.c
index 1302c03e1e..dcb5fbd76e 100644
--- a/epan/dissectors/packet-dtls.c
+++ b/epan/dissectors/packet-dtls.c
@@ -1556,7 +1556,7 @@ static gboolean
 dtlsdecrypt_uat_fld_protocol_chk_cb(void* r _U_, const char* p, guint len _U_, const void* u1 _U_, const void* u2 _U_, char** err)
 {
     if (!p || strlen(p) == 0u) {
-        *err = g_strdup_printf("No protocol given.");
+        *err = g_strdup("No protocol given.");
         return FALSE;
     }
 
diff --git a/epan/dissectors/packet-h450-ros.c b/epan/dissectors/packet-h450-ros.c
index 1ff1f3be86..c17dbacb55 100644
--- a/epan/dissectors/packet-h450-ros.c
+++ b/epan/dissectors/packet-h450-ros.c
@@ -235,7 +235,7 @@ dissect_h450_ros_Invoke(tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_,
     else if (actx->rose_ctx->d.code == 1)
       descr = wmem_strdup_printf(wmem_packet_scope(), "INV: %s", actx->rose_ctx->d.code_global);
   } else {
-    descr = wmem_strdup_printf(wmem_packet_scope(), "INV:");
+    descr = wmem_strdup(wmem_packet_scope(), "INV:");
   }
 
   if (actx->rose_ctx->apdu_depth >= 0)
@@ -318,7 +318,7 @@ dissect_h450_ros_ReturnResult(tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *act
     else if (actx->rose_ctx->d.code == 1)
       descr = wmem_strdup_printf(wmem_packet_scope(), "RES: %s", actx->rose_ctx->d.code_global);
   } else {
-    descr = wmem_strdup_printf(wmem_packet_scope(), "RES:");
+    descr = wmem_strdup(wmem_packet_scope(), "RES:");
   }
 
   if (actx->rose_ctx->apdu_depth >= 0)
@@ -388,7 +388,7 @@ dissect_h450_ros_ReturnError(tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx
     else if (actx->rose_ctx->d.code == 1)
       descr = wmem_strdup_printf(wmem_packet_scope(), "ERR: %s", actx->rose_ctx->d.code_global);
   } else {
-    descr = wmem_strdup_printf(wmem_packet_scope(), "ERR:");
+    descr = wmem_strdup(wmem_packet_scope(), "ERR:");
   }
 
   if (actx->rose_ctx->apdu_depth >= 0)
diff --git a/epan/dissectors/packet-isakmp.c b/epan/dissectors/packet-isakmp.c
index d3a0213b45..a0e278e5d9 100644
--- a/epan/dissectors/packet-isakmp.c
+++ b/epan/dissectors/packet-isakmp.c
@@ -5309,7 +5309,7 @@ static gboolean ikev1_uat_data_update_cb(void* p, char** err) {
   }
 
   if (ud->key_len == 0) {
-    *err = g_strdup_printf("Must have Encryption key.");
+    *err = g_strdup("Must have Encryption key.");
     return FALSE;
   }
 
diff --git a/epan/dissectors/packet-k12.c b/epan/dissectors/packet-k12.c
index 1b9fdf8025..154cef36bd 100644
--- a/epan/dissectors/packet-k12.c
+++ b/epan/dissectors/packet-k12.c
@@ -375,7 +375,7 @@ protos_chk_cb(void* r _U_, const char* p, guint len, const void* u1 _U_, const v
 		g_strstrip(protos[num_protos]);
 
 	if (!num_protos) {
-		*err = g_strdup_printf("No protocols given");
+		*err = g_strdup("No protocols given");
 		wmem_free(NULL, line);
 		wmem_free(NULL, protos);
 		return FALSE;
diff --git a/epan/dissectors/packet-lbmpdmtcp.c b/epan/dissectors/packet-lbmpdmtcp.c
index e7101ef711..006b067abd 100644
--- a/epan/dissectors/packet-lbmpdmtcp.c
+++ b/epan/dissectors/packet-lbmpdmtcp.c
@@ -159,7 +159,7 @@ static gboolean lbmpdm_tcp_tag_update_cb(void * record, char * * error_string)
 
     if (tag->name == NULL)
     {
-        *error_string = g_strdup_printf("Tag name can't be empty");
+        *error_string = g_strdup("Tag name can't be empty");
         return FALSE;
     }
     else
@@ -167,7 +167,7 @@ static gboolean lbmpdm_tcp_tag_update_cb(void * record, char * * error_string)
         g_strstrip(tag->name);
         if (tag->name[0] == 0)
         {
-            *error_string = g_strdup_printf("Tag name can't be empty");
+            *error_string = g_strdup("Tag name can't be empty");
             return FALSE;
         }
     }
diff --git a/epan/dissectors/packet-lbmr.c b/epan/dissectors/packet-lbmr.c
index e42d0bb43e..f112f7e2b6 100644
--- a/epan/dissectors/packet-lbmr.c
+++ b/epan/dissectors/packet-lbmr.c
@@ -1967,7 +1967,7 @@ static gboolean lbmr_tag_update_cb(void * record, char * * error_string)
 
     if (tag->name == NULL)
     {
-        *error_string = g_strdup_printf("Tag name can't be empty");
+        *error_string = g_strdup("Tag name can't be empty");
         return FALSE;
     }
     else
@@ -1975,7 +1975,7 @@ static gboolean lbmr_tag_update_cb(void * record, char * * error_string)
         g_strstrip(tag->name);
         if (tag->name[0] == 0)
         {
-            *error_string = g_strdup_printf("Tag name can't be empty");
+            *error_string = g_strdup("Tag name can't be empty");
             return FALSE;
         }
     }
diff --git a/epan/dissectors/packet-lbtrm.c b/epan/dissectors/packet-lbtrm.c
index f3e1e6842d..16bbbf64e8 100644
--- a/epan/dissectors/packet-lbtrm.c
+++ b/epan/dissectors/packet-lbtrm.c
@@ -652,7 +652,7 @@ static gboolean lbtrm_tag_update_cb(void * record, char * * error_string)
 
     if (tag->name == NULL)
     {
-        *error_string = g_strdup_printf("Tag name can't be empty");
+        *error_string = g_strdup("Tag name can't be empty");
         return FALSE;
     }
     else
@@ -660,7 +660,7 @@ static gboolean lbtrm_tag_update_cb(void * record, char * * error_string)
         g_strstrip(tag->name);
         if (tag->name[0] == 0)
         {
-            *error_string = g_strdup_printf("Tag name can't be empty");
+            *error_string = g_strdup("Tag name can't be empty");
             return FALSE;
         }
     }
diff --git a/epan/dissectors/packet-lbtru.c b/epan/dissectors/packet-lbtru.c
index 8b79178a43..91fc8bea82 100644
--- a/epan/dissectors/packet-lbtru.c
+++ b/epan/dissectors/packet-lbtru.c
@@ -701,7 +701,7 @@ static gboolean lbtru_tag_update_cb(void * record, char * * error_string)
 
     if (tag->name == NULL)
     {
-        *error_string = g_strdup_printf("Tag name can't be empty");
+        *error_string = g_strdup("Tag name can't be empty");
         return FALSE;
     }
     else
@@ -709,7 +709,7 @@ static gboolean lbtru_tag_update_cb(void * record, char * * error_string)
         g_strstrip(tag->name);
         if (tag->name[0] == 0)
         {
-            *error_string = g_strdup_printf("Tag name can't be empty");
+            *error_string = g_strdup("Tag name can't be empty");
             return FALSE;
         }
     }
diff --git a/epan/dissectors/packet-lbttcp.c b/epan/dissectors/packet-lbttcp.c
index 615b760255..d91f19e85d 100644
--- a/epan/dissectors/packet-lbttcp.c
+++ b/epan/dissectors/packet-lbttcp.c
@@ -332,7 +332,7 @@ static gboolean lbttcp_tag_update_cb(void * record, char * * error_string)
 
     if (tag->name == NULL)
     {
-        *error_string = g_strdup_printf("Tag name can't be empty");
+        *error_string = g_strdup("Tag name can't be empty");
         return FALSE;
     }
     else
@@ -340,7 +340,7 @@ static gboolean lbttcp_tag_update_cb(void * record, char * * error_string)
         g_strstrip(tag->name);
         if (tag->name[0] == 0)
         {
-            *error_string = g_strdup_printf("Tag name can't be empty");
+            *error_string = g_strdup("Tag name can't be empty");
             return FALSE;
         }
     }
diff --git a/epan/dissectors/packet-ldap.c b/epan/dissectors/packet-ldap.c
index 95ba5258bf..fae5f52787 100644
--- a/epan/dissectors/packet-ldap.c
+++ b/epan/dissectors/packet-ldap.c
@@ -1900,7 +1900,7 @@ dissect_ldap_T_and(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_,
 
 	if(and_filter_string) {
 		proto_item_append_text(it, "%s", and_filter_string);
-		Filter_string=wmem_strdup_printf(wmem_packet_scope(), "%s",and_filter_string);
+		Filter_string=wmem_strdup(wmem_packet_scope(), and_filter_string);
 	}
 	and_filter_string=old_and_filter_string;
 
@@ -1948,7 +1948,7 @@ dissect_ldap_T_or(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_,
 
 	if(or_filter_string) {
 		proto_item_append_text(it, "%s", or_filter_string);
-		Filter_string=wmem_strdup_printf(wmem_packet_scope(), "%s",or_filter_string);
+		Filter_string=wmem_strdup(wmem_packet_scope(), or_filter_string);
 	}
 	or_filter_string=old_or_filter_string;
 
diff --git a/epan/dissectors/packet-q932-ros.c b/epan/dissectors/packet-q932-ros.c
index 6f975104ea..d2fc2a2d92 100644
--- a/epan/dissectors/packet-q932-ros.c
+++ b/epan/dissectors/packet-q932-ros.c
@@ -296,7 +296,7 @@ dissect_q932_ros_Invoke(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset
     else if (actx->rose_ctx->d.code == 1)
       descr = wmem_strdup_printf(wmem_packet_scope(), "INV: %s", actx->rose_ctx->d.code_global);
   } else {
-    descr = wmem_strdup_printf(wmem_packet_scope(), "INV:");
+    descr = wmem_strdup(wmem_packet_scope(), "INV:");
   }
 
   if (actx->rose_ctx->apdu_depth >= 0)
@@ -389,7 +389,7 @@ dissect_q932_ros_ReturnResult(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int
     else if (actx->rose_ctx->d.code == 1)
       descr = wmem_strdup_printf(wmem_packet_scope(), "RES: %s", actx->rose_ctx->d.code_global);
   } else {
-    descr = wmem_strdup_printf(wmem_packet_scope(), "RES:");
+    descr = wmem_strdup(wmem_packet_scope(), "RES:");
   }
 
   if (actx->rose_ctx->apdu_depth >= 0)
@@ -469,7 +469,7 @@ dissect_q932_ros_ReturnError(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int o
     else if (actx->rose_ctx->d.code == 1)
       descr = wmem_strdup_printf(wmem_packet_scope(), "ERR: %s", actx->rose_ctx->d.code_global);
   } else {
-    descr = wmem_strdup_printf(wmem_packet_scope(), "ERR:");
+    descr = wmem_strdup(wmem_packet_scope(), "ERR:");
   }
 
   if (actx->rose_ctx->apdu_depth >= 0)
diff --git a/epan/dissectors/packet-rpc.c b/epan/dissectors/packet-rpc.c
index b7c4b2193a..5dc7168844 100644
--- a/epan/dissectors/packet-rpc.c
+++ b/epan/dissectors/packet-rpc.c
@@ -435,7 +435,7 @@ rpcstat_param(register_srt_t* srt, const char* opt_arg, char** err)
 	}
 	else
 	{
-		*err = g_strdup_printf("<program>,<version>[,<filter>]");
+		*err = g_strdup("<program>,<version>[,<filter>]");
 	}
 
 	return pos;
diff --git a/epan/dissectors/packet-scsi.c b/epan/dissectors/packet-scsi.c
index 3851c5da93..7b5a526db4 100644
--- a/epan/dissectors/packet-scsi.c
+++ b/epan/dissectors/packet-scsi.c
@@ -1062,7 +1062,7 @@ scsistat_param(register_srt_t* srt, const char* opt_arg, char** err)
     }
     else
     {
-        *err = g_strdup_printf("<cmdset>[,<filter>]");
+        *err = g_strdup("<cmdset>[,<filter>]");
     }
 
     return pos;
diff --git a/epan/dissectors/packet-ssl-utils.c b/epan/dissectors/packet-ssl-utils.c
index 2ed8f89a60..4f7b000fe2 100644
--- a/epan/dissectors/packet-ssl-utils.c
+++ b/epan/dissectors/packet-ssl-utils.c
@@ -4916,7 +4916,7 @@ gboolean
 ssldecrypt_uat_fld_ip_chk_cb(void* r _U_, const char* p, guint len _U_, const void* u1 _U_, const void* u2 _U_, char** err)
 {
     if (!p || strlen(p) == 0u) {
-        *err = g_strdup_printf("No IP address given.");
+        *err = g_strdup("No IP address given.");
         return FALSE;
     }
 
@@ -4928,14 +4928,14 @@ gboolean
 ssldecrypt_uat_fld_port_chk_cb(void* r _U_, const char* p, guint len _U_, const void* u1 _U_, const void* u2 _U_, char** err)
 {
     if (!p || strlen(p) == 0u) {
-        *err = g_strdup_printf("No Port given.");
+        *err = g_strdup("No Port given.");
         return FALSE;
     }
 
     if (strcmp(p, "start_tls") != 0){
         const gint i = atoi(p);
         if (i < 0 || i > 65535) {
-            *err = g_strdup_printf("Invalid port given.");
+            *err = g_strdup("Invalid port given.");
             return FALSE;
         }
     }
@@ -4950,7 +4950,7 @@ ssldecrypt_uat_fld_fileopen_chk_cb(void* r _U_, const char* p, guint len _U_, co
     ws_statb64 st;
 
     if (!p || strlen(p) == 0u) {
-        *err = g_strdup_printf("No filename given.");
+        *err = g_strdup("No filename given.");
         return FALSE;
     } else {
         if (ws_stat64(p, &st) != 0) {
diff --git a/epan/dissectors/packet-ssl.c b/epan/dissectors/packet-ssl.c
index 6958ab74bd..6bab404798 100644
--- a/epan/dissectors/packet-ssl.c
+++ b/epan/dissectors/packet-ssl.c
@@ -3649,7 +3649,7 @@ static gboolean
 ssldecrypt_uat_fld_protocol_chk_cb(void* r _U_, const char* p, guint len _U_, const void* u1 _U_, const void* u2 _U_, char** err)
 {
     if (!p || strlen(p) == 0u) {
-        *err = g_strdup_printf("No protocol given.");
+        *err = g_strdup("No protocol given.");
         return FALSE;
     }
 
diff --git a/epan/dissectors/packet-zbee-nwk-gp.c b/epan/dissectors/packet-zbee-nwk-gp.c
index f1d2ce35ce..14c48d213a 100644
--- a/epan/dissectors/packet-zbee-nwk-gp.c
+++ b/epan/dissectors/packet-zbee-nwk-gp.c
@@ -610,7 +610,7 @@ uat_key_record_update_cb(void *r, char **err)
     uat_key_record_t *rec = (uat_key_record_t *)r;
 
     if (rec->string == NULL) {
-         *err = g_strdup_printf("Key can't be blank.");
+         *err = g_strdup("Key can't be blank.");
          return FALSE;
     } else {
         g_strstrip(rec->string);
@@ -622,7 +622,7 @@ uat_key_record_update_cb(void *r, char **err)
                 return FALSE;
             }
         } else {
-            *err = g_strdup_printf("Key can't be blank.");
+            *err = g_strdup("Key can't be blank.");
             return FALSE;
         }
     }
diff --git a/epan/dissectors/packet-zbee-nwk.c b/epan/dissectors/packet-zbee-nwk.c
index 3816f08080..25824b75b9 100644
--- a/epan/dissectors/packet-zbee-nwk.c
+++ b/epan/dissectors/packet-zbee-nwk.c
@@ -524,7 +524,7 @@ dissect_zbee_nwk_full(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void
     if (   (packet.dst == ZBEE_BCAST_ALL)
         || (packet.dst == ZBEE_BCAST_ACTIVE)
         || (packet.dst == ZBEE_BCAST_ROUTERS)){
-        dst_addr = wmem_strdup_printf(pinfo->pool, "Broadcast");
+        dst_addr = wmem_strdup(pinfo->pool, "Broadcast");
     }
     else {
         dst_addr = wmem_strdup_printf(pinfo->pool, "0x%04x", packet.dst);
@@ -549,7 +549,7 @@ dissect_zbee_nwk_full(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void
         || (packet.src == ZBEE_BCAST_ACTIVE)
         || (packet.src == ZBEE_BCAST_ROUTERS)){
         /* Source Broadcast doesn't make much sense. */
-        src_addr = wmem_strdup_printf(pinfo->pool, "Unexpected Source Broadcast");
+        src_addr = wmem_strdup(pinfo->pool, "Unexpected Source Broadcast");
         unicast_src = FALSE;
     }
     else {
diff --git a/epan/prefs.c b/epan/prefs.c
index c5865baf9e..9a7a66e504 100644
--- a/epan/prefs.c
+++ b/epan/prefs.c
@@ -4829,7 +4829,7 @@ prefs_pref_to_str(pref_t *pref, pref_source_t source) {
     }
 
     case PREF_BOOL:
-        return g_strdup_printf("%s", (*(gboolean *) valp) ? "TRUE" : "FALSE");
+        return g_strdup((*(gboolean *) valp) ? "TRUE" : "FALSE");
 
     case PREF_ENUM:
     {
diff --git a/extcap/ssh-base.c b/extcap/ssh-base.c
index cc50417137..87c364f972 100644
--- a/extcap/ssh-base.c
+++ b/extcap/ssh-base.c
@@ -40,12 +40,12 @@ ssh_session create_ssh_connection(const char* hostname, const unsigned int port,
 	/* Open session and set options */
 	sshs = ssh_new();
 	if (sshs == NULL) {
-		*err_info = g_strdup_printf("Can't create ssh session");
+		*err_info = g_strdup("Can't create ssh session");
 		return NULL;
 	}
 
 	if (!hostname) {
-		*err_info = g_strdup_printf("Hostname needed");
+		*err_info = g_strdup("Hostname needed");
 		goto failure;
 	}
 
diff --git a/ui/gtk/capture_dlg.c b/ui/gtk/capture_dlg.c
index 92adc460a2..175e6854d7 100644
--- a/ui/gtk/capture_dlg.c
+++ b/ui/gtk/capture_dlg.c
@@ -1338,7 +1338,7 @@ insert_new_rows(GList *list)
          * used.
          */
         if (data_link_info->description != NULL) {
-          str = g_strdup_printf("%s", data_link_info->description);
+          str = g_strdup(data_link_info->description);
           linkr->dlt = data_link_info->dlt;
         } else {
           str = g_strdup_printf("%s (not supported)", data_link_info->name);
@@ -3369,7 +3369,7 @@ static void change_pipe_name_cb(gpointer dialog _U_, gint btn, gpointer data)
         g_free(device.name);
         g_free(device.display_name);
         device.name = g_strdup((gchar *)data);
-        device.display_name = g_strdup_printf("%s", device.name);
+        device.display_name = g_strdup(device.name);
         g_array_remove_index(global_capture_opts.all_ifaces, i);
         g_array_insert_val(global_capture_opts.all_ifaces, i, device);
         temp = g_strdup_printf("<b>%s</b>", device.display_name);
@@ -3479,7 +3479,7 @@ add_pipe_cb(gpointer w _U_)
     pipe_name           = g_strdup(g_save_file);
     memset(&device, 0, sizeof(device));
     device.name         = g_strdup(g_save_file);
-    device.display_name = g_strdup_printf("%s", device.name);
+    device.display_name = g_strdup(device.name);
     device.hidden       = FALSE;
     device.selected     = TRUE;
     device.type         = IF_PIPE;
diff --git a/ui/gtk/filter_utils.c b/ui/gtk/filter_utils.c
index 3e270eb7b3..502a5dfc70 100644
--- a/ui/gtk/filter_utils.c
+++ b/ui/gtk/filter_utils.c
@@ -45,20 +45,20 @@ apply_selected_filter (guint callback_action, const char *filter)
 
 	switch(type){
 	case ACTYPE_SELECTED:
-		str = g_strdup_printf("%s", filter);
+		str = g_strdup(filter);
 		break;
 	case ACTYPE_NOT_SELECTED:
 		str = g_strdup_printf("!(%s)", filter);
 		break;
 	case ACTYPE_AND_SELECTED:
 		if ((!current_filter) || (0 == strlen(current_filter)))
-			str = g_strdup_printf("%s", filter);
+			str = g_strdup(filter);
 		else
 			str = g_strdup_printf("(%s) && (%s)", current_filter, filter);
 		break;
 	case ACTYPE_OR_SELECTED:
 		if ((!current_filter) || (0 == strlen(current_filter)))
-			str = g_strdup_printf("%s", filter);
+			str = g_strdup(filter);
 		else
 			str = g_strdup_printf("(%s) || (%s)", current_filter, filter);
 		break;
diff --git a/ui/gtk/main.c b/ui/gtk/main.c
index 71a4d8e15d..863d16f372 100644
--- a/ui/gtk/main.c
+++ b/ui/gtk/main.c
@@ -543,13 +543,13 @@ get_ip_address_list_from_packet_list_row(gpointer data)
 
         /* First check selected column */
         if (is_address_column (column)) {
-            addr_list = g_list_append (addr_list, g_strdup_printf("%s", cfile.cinfo.col_expr.col_expr_val[column]));
+            addr_list = g_list_append (addr_list, g_strdup(cfile.cinfo.col_expr.col_expr_val[column]));
         }
 
         for (col = 0; col < cfile.cinfo.num_cols; col++) {
             /* Then check all columns except the selected */
             if ((col != column) && (is_address_column (col))) {
-                addr_list = g_list_append (addr_list, g_strdup_printf("%s", cfile.cinfo.col_expr.col_expr_val[col]));
+                addr_list = g_list_append (addr_list, g_strdup(cfile.cinfo.col_expr.col_expr_val[col]));
             }
         }
 
diff --git a/ui/gtk/prefs_column.c b/ui/gtk/prefs_column.c
index 715042a95b..8858eeeb4e 100644
--- a/ui/gtk/prefs_column.c
+++ b/ui/gtk/prefs_column.c
@@ -190,7 +190,7 @@ column_prefs_show(GtkWidget *prefs_window) {
                 cfmt->custom_fields = NULL;
                 cfmt->custom_occurrence = 0;
             }
-            fmt = g_strdup_printf("%s", col_format_desc(cfmt->fmt));
+            fmt = g_strdup(col_format_desc(cfmt->fmt));
         }
         gtk_list_store_insert_with_values(store, &iter, G_MAXINT,
                            VISIBLE_COLUMN, cfmt->visible,
@@ -561,7 +561,7 @@ column_menu_changed_cb(GtkWidget *w, gpointer data) {
         /* Changing from custom to non-custom   */
         gtk_editable_delete_text(GTK_EDITABLE(field_te), 0, -1);
         gtk_editable_delete_text(GTK_EDITABLE(occurrence_te), 0, -1);
-        fmt = g_strdup_printf("%s", col_format_desc(cur_cb_fmt));
+        fmt = g_strdup(col_format_desc(cur_cb_fmt));
         gtk_widget_set_sensitive(field_lb, FALSE);
         gtk_widget_set_sensitive(field_te, FALSE);
         gtk_widget_set_sensitive(occurrence_lb, FALSE);
@@ -588,7 +588,7 @@ column_menu_changed_cb(GtkWidget *w, gpointer data) {
 
     } else {
         /* Changing from non-custom to non-custom */
-        fmt = g_strdup_printf("%s", col_format_desc(cur_cb_fmt));
+        fmt = g_strdup(col_format_desc(cur_cb_fmt));
     }
     g_signal_handler_unblock(occurrence_te, column_occurrence_changed_handler_id);
     g_signal_handler_unblock(field_te, column_field_changed_handler_id);
diff --git a/ui/gtk/proto_hier_stats_dlg.c b/ui/gtk/proto_hier_stats_dlg.c
index 041e9aac25..6f271bc6f5 100644
--- a/ui/gtk/proto_hier_stats_dlg.c
+++ b/ui/gtk/proto_hier_stats_dlg.c
@@ -84,7 +84,7 @@ proto_hier_select_filter_cb(GtkWidget *widget _U_, gpointer callback_data _U_, g
 
     gtk_tree_model_get (model, &iter, FILTER_NAME, &filter, -1);
     if (filter && strlen(filter) > 0) {
-        str = g_strdup_printf("%s", filter);
+        str = g_strdup(filter);
     } else {
         simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, "Could not acquire information to build a filter!\nTry expanding or choosing another item.");
         return;
@@ -92,7 +92,7 @@ proto_hier_select_filter_cb(GtkWidget *widget _U_, gpointer callback_data _U_, g
 
     while (gtk_tree_path_up(path) && gtk_tree_path_get_depth(path) > 0)
     {
-        strtmp = g_strdup_printf("%s", str);
+        strtmp = g_strdup(str);
         g_free(str);
 
         gtk_tree_model_get_iter(model, &iter, path);
diff --git a/ui/gtk/sctp_assoc_analyse.c b/ui/gtk/sctp_assoc_analyse.c
index 8900b34b36..23fb5159e1 100644
--- a/ui/gtk/sctp_assoc_analyse.c
+++ b/ui/gtk/sctp_assoc_analyse.c
@@ -548,7 +548,7 @@ sctp_set_filter(GtkButton *button _U_, struct sctp_analyse *u_data)
 			dstlist = g_list_next(dstlist);
 			wmem_free(NULL, addr_str);
 		}
-		str = g_strdup_printf(")))");
+		str = g_strdup(")))");
 		g_string_append(gstring, str);
 		filter_string = g_string_free(gstring, FALSE);
 	}
diff --git a/ui/gtk/sctp_stat_dlg.c b/ui/gtk/sctp_stat_dlg.c
index 59d57ae0ee..188437d6ec 100644
--- a/ui/gtk/sctp_stat_dlg.c
+++ b/ui/gtk/sctp_stat_dlg.c
@@ -536,7 +536,7 @@ sctp_stat_on_filter(GtkButton *button _U_, gpointer user_data _U_)
 			wmem_free(NULL, addr_str);
 			dstlist = g_list_next(dstlist);
 		}
-		str = g_strdup_printf(")))");
+		str = g_strdup(")))");
 		g_string_append(gstring, str);
 		filter_string = g_string_free(gstring,FALSE);
 	}
diff --git a/ui/gtk/stats_tree_stat.c b/ui/gtk/stats_tree_stat.c
index 1562c13e44..f421e1b693 100644
--- a/ui/gtk/stats_tree_stat.c
+++ b/ui/gtk/stats_tree_stat.c
@@ -456,7 +456,7 @@ init_gtk_tree(const char* opt_arg, void *userdata _U_)
 		title=g_strdup_printf("%s with filter: %s",st->display_name,st->filter);
 	} else {
 		st->filter=NULL;
-		title=g_strdup_printf("%s", st->display_name);
+		title=g_strdup(st->display_name);
 	}
 
 	gtk_window_set_title(GTK_WINDOW(st->pr->win), title);
@@ -585,7 +585,7 @@ void gtk_stats_tree_cb(GtkAction *action, gpointer user_data _U_)
 	if(abbr){
 		abbr = abbr+1;
 	}else{
-		abbr = g_strdup_printf("%s",action_name);
+		abbr = g_strdup(action_name);
 	}
 	cfg = stats_tree_get_cfg_by_abbr(abbr);
 	if(cfg){
diff --git a/ui/iface_lists.c b/ui/iface_lists.c
index 10cb277522..429cc0f67e 100644
--- a/ui/iface_lists.c
+++ b/ui/iface_lists.c
@@ -250,7 +250,7 @@ scan_local_interfaces(void (*update_cb)(void))
                 link = (link_row *)g_malloc(sizeof(link_row));
                 if (data_link_info->description != NULL) {
                     link->dlt = data_link_info->dlt;
-                    link->name = g_strdup_printf("%s", data_link_info->description);
+                    link->name = g_strdup(data_link_info->description);
                 } else {
                     link->dlt = -1;
                     link->name = g_strdup_printf("%s (not supported)", data_link_info->name);
@@ -326,7 +326,7 @@ scan_local_interfaces(void (*update_cb)(void))
             device.name         = g_strdup(interface_opts.name);
             device.display_name = interface_opts.descr ?
                 g_strdup_printf("%s: %s", device.name, interface_opts.descr) :
-                g_strdup_printf("%s", device.name);
+                g_strdup(device.name);
             device.hidden       = FALSE;
             device.selected     = TRUE;
             device.type         = IF_PIPE;
diff --git a/ui/qt/manage_interfaces_dialog.cpp b/ui/qt/manage_interfaces_dialog.cpp
index 5ce7c5dd82..96f8964f16 100644
--- a/ui/qt/manage_interfaces_dialog.cpp
+++ b/ui/qt/manage_interfaces_dialog.cpp
@@ -608,7 +608,7 @@ void ManageInterfacesDialog::addRemoteInterfaces(GList* rlist, remote_options *r
                  * used.
                  */
                 if (data_link_info->description != NULL) {
-                    str = g_strdup_printf("%s", data_link_info->description);
+                    str = g_strdup(data_link_info->description);
                     linkr->dlt = data_link_info->dlt;
                 } else {
                     str = g_strdup_printf("%s (not supported)", data_link_info->name);
diff --git a/wiretap/btsnoop.c b/wiretap/btsnoop.c
index c443723e9e..ac48c3b5f3 100644
--- a/wiretap/btsnoop.c
+++ b/wiretap/btsnoop.c
@@ -120,18 +120,18 @@ wtap_open_return_val btsnoop_open(wtap *wth, int *err, gchar **err_info)
         break;
     case KHciLoggerDatalinkTypeBCSP:
         *err = WTAP_ERR_UNSUPPORTED;
-        *err_info = g_strdup_printf("btsnoop: BCSP capture logs unsupported");
+        *err_info = g_strdup("btsnoop: BCSP capture logs unsupported");
         return WTAP_OPEN_ERROR;
     case KHciLoggerDatalinkTypeH5:
         *err = WTAP_ERR_UNSUPPORTED;
-        *err_info = g_strdup_printf("btsnoop: H5 capture logs unsupported");
+        *err_info = g_strdup("btsnoop: H5 capture logs unsupported");
         return WTAP_OPEN_ERROR;
     case KHciLoggerDatalinkLinuxMonitor:
         file_encap=WTAP_ENCAP_BLUETOOTH_LINUX_MONITOR;
         break;
     case KHciLoggerDatalinkBlueZ5Simulator:
         *err = WTAP_ERR_UNSUPPORTED;
-        *err_info = g_strdup_printf("btsnoop: BlueZ 5 Simulator capture logs unsupported");
+        *err_info = g_strdup("btsnoop: BlueZ 5 Simulator capture logs unsupported");
         return WTAP_OPEN_ERROR;
     default:
         *err = WTAP_ERR_UNSUPPORTED;
diff --git a/wiretap/dct3trace.c b/wiretap/dct3trace.c
index 81a4970105..e7987f62b6 100644
--- a/wiretap/dct3trace.c
+++ b/wiretap/dct3trace.c
@@ -226,7 +226,7 @@ static gboolean dct3trace_get_packet(FILE_T fh, struct wtap_pkthdr *phdr,
 			{
 				/* If not got any data return error */
 				*err = WTAP_ERR_BAD_FILE;
-				*err_info = g_strdup_printf("dct3trace: record without data");
+				*err_info = g_strdup("dct3trace: record without data");
 				return FALSE;
 			}
 		}
@@ -338,7 +338,7 @@ static gboolean dct3trace_get_packet(FILE_T fh, struct wtap_pkthdr *phdr,
 
 baddata:
 	*err = WTAP_ERR_BAD_FILE;
-	*err_info = g_strdup_printf("dct3trace: record missing mandatory attributes");
+	*err_info = g_strdup("dct3trace: record missing mandatory attributes");
 	return FALSE;
 }
 
diff --git a/wiretap/erf.c b/wiretap/erf.c
index b31562b0f5..04a1bb5be8 100644
--- a/wiretap/erf.c
+++ b/wiretap/erf.c
@@ -520,7 +520,7 @@ static gboolean erf_read_header(wtap *wth, FILE_T fh,
     /* If this isn't a pad record, it's a corrupt packet; bail out */
     if ((erf_header->type & 0x7F) != ERF_TYPE_PAD) {
       *err = WTAP_ERR_BAD_FILE;
-      *err_info = g_strdup_printf("erf: File has 0 byte packet");
+      *err_info = g_strdup("erf: File has 0 byte packet");
 
       return FALSE;
     }
diff --git a/wiretap/netmon.c b/wiretap/netmon.c
index a7e2ea6eab..f258eac836 100644
--- a/wiretap/netmon.c
+++ b/wiretap/netmon.c
@@ -746,7 +746,7 @@ netmon_process_record(wtap *wth, FILE_T fh, struct wtap_pkthdr *phdr,
 			 */
 			if (!filetime_to_nstime(&phdr->ts, d)) {
 				*err = WTAP_ERR_BAD_FILE;
-				*err_info = g_strdup_printf("netmon: time stamp outside supported range");
+				*err_info = g_strdup("netmon: time stamp outside supported range");
 				return FAILURE;
 			}
 		}
diff --git a/wiretap/ngsniffer.c b/wiretap/ngsniffer.c
index da5929885c..3d78c3d57b 100644
--- a/wiretap/ngsniffer.c
+++ b/wiretap/ngsniffer.c
@@ -597,7 +597,7 @@ ngsniffer_open(wtap *wth, int *err, gchar **err_info)
 
 	if (type != REC_VERS) {
 		*err = WTAP_ERR_BAD_FILE;
-		*err_info = g_strdup_printf("ngsniffer: Sniffer file doesn't start with a version record");
+		*err_info = g_strdup("ngsniffer: Sniffer file doesn't start with a version record");
 		return WTAP_OPEN_ERROR;
 	}
 
@@ -892,7 +892,7 @@ process_rec_header2_v2(wtap *wth, unsigned char *buffer, guint16 length,
 		 * There's not enough data to compare.
 		 */
 		*err = WTAP_ERR_UNSUPPORTED;
-		*err_info = g_strdup_printf("ngsniffer: WAN capture has too-short protocol list");
+		*err_info = g_strdup("ngsniffer: WAN capture has too-short protocol list");
 		return -1;
 	}
 
diff --git a/wiretap/pcap-common.c b/wiretap/pcap-common.c
index 8ce6c6ef7c..16e3589b8c 100644
--- a/wiretap/pcap-common.c
+++ b/wiretap/pcap-common.c
@@ -1738,7 +1738,7 @@ pcap_process_pseudo_header(FILE_T fh, int file_type, int wtap_encap,
 	case WTAP_ENCAP_NFC_LLCP:
 		if (check_packet_size && packet_size < LLCP_HEADER_LEN) {
 			*err = WTAP_ERR_BAD_FILE;
-			*err_info = g_strdup_printf("pcap: libpcap llcp file too short");
+			*err_info = g_strdup("pcap: libpcap llcp file too short");
 			return -1;
 		}
 		if (!pcap_read_llcp_pseudoheader(fh, &phdr->pseudo_header, err, err_info))
diff --git a/wiretap/pcapng.c b/wiretap/pcapng.c
index 4ff3afeaa2..a91b35c8c8 100644
--- a/wiretap/pcapng.c
+++ b/wiretap/pcapng.c
@@ -562,7 +562,7 @@ pcapng_read_section_header_block(FILE_T fh, pcapng_block_header_t *bh,
     /* We currently only suport one SHB */
     if (pn->shb_read == TRUE) {
         *err = WTAP_ERR_UNSUPPORTED;
-        *err_info = g_strdup_printf("pcapng_read_section_header_block: multiple section header blocks not supported");
+        *err_info = g_strdup("pcapng_read_section_header_block: multiple section header blocks not supported");
         return PCAPNG_BLOCK_ERROR;
     }
 
@@ -1407,7 +1407,7 @@ pcapng_read_simple_packet_block(FILE_T fh, pcapng_block_header_t *bh, pcapng_t *
 
     if (0 >= pn->interfaces->len) {
         *err = WTAP_ERR_BAD_FILE;
-        *err_info = g_strdup_printf("pcapng_read_simple_packet_block: SPB appeared before any IDBs");
+        *err_info = g_strdup("pcapng_read_simple_packet_block: SPB appeared before any IDBs");
         return FALSE;
     }
     iface_info = g_array_index(pn->interfaces, interface_info_t, 0);
@@ -2584,7 +2584,7 @@ pcapng_read(wtap *wth, int *err, gchar **err_info, gint64 *data_offset)
                 wth->phdr.pkt_encap = WTAP_ENCAP_UNKNOWN;
                 wth->phdr.pkt_tsprec = WTAP_TSPREC_UNKNOWN;
                 *err = WTAP_ERR_UNSUPPORTED;
-                *err_info = g_strdup_printf("pcapng: multi-section files not currently supported");
+                *err_info = g_strdup("pcapng: multi-section files not currently supported");
                 return FALSE;
 
             case(BLOCK_TYPE_PB):
diff --git a/wiretap/peektagged.c b/wiretap/peektagged.c
index 24eaad1406..25ed2e29d9 100644
--- a/wiretap/peektagged.c
+++ b/wiretap/peektagged.c
@@ -734,7 +734,7 @@ peektagged_read_packet(wtap *wth, FILE_T fh, struct wtap_pkthdr *phdr,
     t = (((guint64) timestamp.upper) << 32) + timestamp.lower;
     if (!nsfiletime_to_nstime(&phdr->ts, t)) {
         *err = WTAP_ERR_BAD_FILE;
-        *err_info = g_strdup_printf("peektagged: time stamp outside supported range");
+        *err_info = g_strdup("peektagged: time stamp outside supported range");
         return -1;
     }
 
diff --git a/wiretap/vms.c b/wiretap/vms.c
index 2133c7802d..e9fc9a423a 100644
--- a/wiretap/vms.c
+++ b/wiretap/vms.c
@@ -371,7 +371,7 @@ parse_vms_packet(FILE_T fh, struct wtap_pkthdr *phdr, Buffer *buf, int *err, gch
             /* We will need to add code to handle new format */
             if (num_items_scanned != 8) {
                 *err = WTAP_ERR_BAD_FILE;
-                *err_info = g_strdup_printf("vms: header line not valid");
+                *err_info = g_strdup("vms: header line not valid");
                 return FALSE;
             }
         }
@@ -382,7 +382,7 @@ parse_vms_packet(FILE_T fh, struct wtap_pkthdr *phdr, Buffer *buf, int *err, gch
 
             if ( !*p ) {
                 *err = WTAP_ERR_BAD_FILE;
-                *err_info = g_strdup_printf("vms: Length field not valid");
+                *err_info = g_strdup("vms: Length field not valid");
                 return FALSE;
             }
 
@@ -446,7 +446,7 @@ parse_vms_packet(FILE_T fh, struct wtap_pkthdr *phdr, Buffer *buf, int *err, gch
         if (!parse_single_hex_dump_line(line, pd, i,
                                         offset, pkt_len - i)) {
             *err = WTAP_ERR_BAD_FILE;
-            *err_info = g_strdup_printf("vms: hex dump not valid");
+            *err_info = g_strdup("vms: hex dump not valid");
             return FALSE;
         }
     }