Minor formatting changes

Summary: Apply some autofix linter rules.

Test Plan: `arc lint` and `arc unit`

Reviewers: #blessed_reviewers, epriestley

Reviewed By: #blessed_reviewers, epriestley

Subscribers: epriestley, Korvin, hach-que

Differential Revision: https://secure.phabricator.com/D10585

src/applications/ponder/controller/PonderQuestionViewController.php

@@ -64,7 +64,7 @@ final class PonderQuestionViewController extends PonderController {
         $object_box,
         $question_xactions,
         $answers,
-        $answer_add_panel
+        $answer_add_panel,
       ),
       array(
         'title' => 'Q'.$question->getID().' '.$question->getTitle(),