MQE-2045: Upgrade script to remove unused arguments

Fixed static checks

Author: soumyau

src/Magento/FunctionalTestingFramework/StaticCheck/ActionGroupArgumentsCheck.php

@@ -211,7 +211,7 @@ private function isParentActionGroupArgument($argument, $actionGroup)
     /**
      * Builds and returns error output for violating references
      *
-     * @param array  $actionGroupToArguments
+     * @param array       $actionGroupToArguments
      * @param SplFileInfo $path
      * @return mixed
      */

src/Magento/FunctionalTestingFramework/Upgrade/RemoveUnusedArguments.php

@@ -60,6 +60,6 @@ public function execute(InputInterface $input, OutputInterface $output)
             $fileSystem->dumpFile($file->getRealPath(), $contents);
             $actionGroupsUpdated++;
         }
-        return "Finished removing unused action group arguments from " . $actionGroupsUpdated . " files.";
+        return "Removed unused action group arguments from {$actionGroupsUpdated} file(s).";
     }
-}
+}