Fixed typo that showed up in non-debug build (in sql/sql_show.cc).

sql/sql_show.cc:
  Fixed typo that showed up in non-debug build.

sql/sql_show.cc

@@ -566,7 +566,7 @@ int mysqld_extend_show_tables(THD *thd,const char *db,const char *wild)
         thd->clear_error();
       }
       else
-        DBUG_RETURN(1)
+        DBUG_RETURN(1);
     }
     else if (table_list.view)
     {