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/diffusion/controller/DiffusionChangeController.php

@@ -43,7 +43,7 @@ final class DiffusionChangeController extends DiffusionController {
     $changeset_view->setVisibleChangesets($changesets);
     $changeset_view->setRenderingReferences(
       array(
-        0 => $drequest->generateURI(array('action' => 'rendering-ref'))
+        0 => $drequest->generateURI(array('action' => 'rendering-ref')),
       ));
 
     $raw_params = array(