fixed the longstanding myids memory leak

src/pluto/id.c

@@ -66,6 +66,21 @@ init_id(void)
     set_myFQDN();
 }
 
+/*
+ *  free id module
+ */
+void
+free_id(void)
+{
+    enum myid_state s;
+
+    for (s = MYID_UNKNOWN; s <= MYID_SPECIFIED; s++)
+    {
+	free_id_content(&myids[s]);
+	free(myid_str[s]);
+    }
+}
+
 static void
 calc_myid_str(enum myid_state s)
 {

src/pluto/id.h

@@ -27,7 +27,7 @@ struct id {
 };
 
 extern void init_id(void);
-
+extern void free_id(void);
 extern const struct id empty_id;	/* ID_NONE */
 
 enum myid_state {

src/pluto/plutomain.c

@@ -707,6 +707,7 @@ exit_pluto(int status)
     stop_adns();
     free_md_pool();
     free_crypto();
+    free_id();
     delete_lock();
 	library_deinit();
     close_log();