Report memory leaks from mariadbd if -T or --debug is used

Before memory leaks was only reported if server stopped normally.
This made it harder to find out where the leaks happened when
debugging test cases.

sql/mysqld.cc

@@ -1863,7 +1863,7 @@ static void mysqld_exit(int exit_code)
   {
     fprintf(stderr, "Warning: Memory not freed: %lld\n",
             (longlong) global_status_var.global_memory_used);
-    if (exit_code == 0)
+    if (exit_code == 0 || opt_endinfo)
       SAFEMALLOC_REPORT_MEMORY(0);
   }
   DBUG_LEAVE;