fix warning as error

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@4890 d0543943-73ff-0310-b7d9-9358b9ac24b2

src/mod/applications/mod_commands/mod_commands.c

@@ -900,7 +900,7 @@ static switch_status_t show_function(char *data, switch_core_session_t *session,
 	switch_core_db_t *db = switch_core_db_handle();
 	struct holder holder = { 0 };
 	int help = 0;
-	char *mydata, *argv[5] = {0};
+	char *mydata = NULL, *argv[5] = {0};
 	int argc;
 	char *cmd = NULL, *as = NULL;