[skip-ci] format PHP code same as in owncloud/core

.php-cs-fixer.dist.php

@@ -0,0 +1,16 @@
+<?php
+
+$dirToParse = 'tests/acceptance/';
+$dirIterator = new DirectoryIterator(__DIR__ . '/' . $dirToParse);
+
+$excludeDirs = [
+    'node_modules'
+];
+
+$finder = PhpCsFixer\Finder::create()
+    ->exclude($excludeDirs)
+    ->in(__DIR__);
+
+$config = new OC\CodingStandard\Config();
+$config->setFinder($finder);
+return $config;