Add extra line to avoid weird alignment

tests/Doctrine/Tests/DBAL/Driver/Mysqli/MysqliConnectionTest.php

@@ -47,6 +47,7 @@ class MysqliConnectionTest extends DbalFunctionalTestCase
         $handler = static function () : bool {
             self::fail('Never expected this to be called');
         };
+
         $defaultHandler = set_error_handler($handler);
 
         try {