MAGETWO-52728: CLONE - Cannot import negative quantity

- CR fix

Author: viktym

app/code/Magento/CatalogImportExport/Test/Unit/Model/Import/Product/Validator/QuantityTest.php

@@ -3,7 +3,6 @@
  * Copyright © 2016 Magento. All rights reserved.
  * See COPYING.txt for license details.
  */
-
 namespace Magento\CatalogImportExport\Test\Unit\Model\Import\Product\Validator;
 
 use Magento\CatalogImportExport\Model\Import\Product;
@@ -14,7 +13,9 @@
  */
 class QuantityTest extends \PHPUnit_Framework_TestCase
 {
-    /** @var Quantity */
+    /**
+     * @var Quantity
+     */
     private $quantity;
 
     protected function setUp()