Fixed mysqltest run failure:

Test did not clean up after itself properly

mysql-test/r/empty_server_name-8224.result

 create server '' foreign data wrapper w2 options (host '127.0.0.1');
+drop server '';

mysql-test/t/empty_server_name-8224.test

@@ -7,3 +7,7 @@ create server '' foreign data wrapper w2 options (host '127.0.0.1');
 --shutdown_server 10
 --source include/wait_until_disconnected.inc
 --exec echo "restart" > $MYSQLTEST_VARDIR/tmp/mysqld.1.expect
+
+-- enable_reconnect
+-- source include/wait_until_connected_again.inc
+drop server '';