fix pushbuild failures

sql/ha_federated.cc:
  remote_error_number is set to -1 when an error was already reported
  with my_error(). ER(-1) will also cause a crash on 64bit arch and only
  worked on 32bit arch by luck

sql/ha_federated.cc

@@ -2585,6 +2585,7 @@ int ha_federated::info(uint flag)
     my_error(error_code, MYF(0), error_buffer);
   }
   else
+  if (remote_error_number != -1 /* error already reported */)
   {
     error_code= remote_error_number;
     my_error(error_code, MYF(0), ER(error_code));