Cleanup with static test

Author: VoronoyAlexandr

app/code/Magento/Backend/Block/Widget/Grid.php

@@ -150,7 +150,10 @@ public function __construct(
     }
 
     /**
+     * Internal constructor, that is called from real constructor
+     *
      * @return void
+     *
      * @SuppressWarnings(PHPMD.NPathComplexity)
      */
     protected function _construct()
@@ -709,6 +712,7 @@ public function getGridUrl()
 
     /**
      * Grid url getter
+     *
      * Version of getGridUrl() but with parameters
      *
      * @param array $params url parameters