MAGETWO-95745: Signifyd case not created for WorldPay

- fix static test failures

Author: Joan He

app/code/Magento/Checkout/Controller/Onepage/Success.php

@@ -1,13 +1,15 @@
 <?php
 /**
- *
  * Copyright © Magento, Inc. All rights reserved.
  * See COPYING.txt for license details.
  */
 namespace Magento\Checkout\Controller\Onepage;
 
 use Magento\Framework\App\Action\HttpGetActionInterface as HttpGetActionInterface;
 
+/**
+ * Onepage checkout success controller class
+ */
 class Success extends \Magento\Checkout\Controller\Onepage implements HttpGetActionInterface
 {
     /**

app/code/Magento/Paypal/Controller/Payflow/ReturnUrl.php

@@ -1,6 +1,5 @@
 <?php
 /**
- *
  * Copyright © Magento, Inc. All rights reserved.
  * See COPYING.txt for license details.
  */
@@ -14,6 +13,9 @@
 use Magento\Paypal\Model\Config;
 use Magento\Sales\Model\Order;
 
+/**
+ * Paypal Payflow ReturnUrl controller class
+ */
 class ReturnUrl extends Payflow implements CsrfAwareActionInterface, HttpGetActionInterface
 {
     /**