MAGETWO-69964: PHPCS cannot parse correctly syntax of PHP 7.x return types

Author: oshmyheliuk

app/code/Magento/Catalog/view/frontend/templates/product/widget/viewed/list.phtml

@@ -10,7 +10,7 @@
  */
 ?>
 
-<?= /* @escapeNotVerified */ $block->renderApp(    [
+<?= /* @escapeNotVerified */ $block->renderApp([
     'widget_columns' => [
         'displayMode' => 'list'
     ],