Change double quotes to single quotes.

Summary: Ran `arc lint --apply-patches --everything` over rP, mainly to change double quotes to single quotes where appropriate. These changes also validate that the `ArcanistXHPASTLinter::LINT_DOUBLE_QUOTE` rule is working as expected.

Test Plan: Eyeballed it.

Reviewers: #blessed_reviewers, epriestley

Reviewed By: #blessed_reviewers, epriestley

Subscribers: epriestley, Korvin, hach-que

Differential Revision: https://secure.phabricator.com/D9431

src/applications/files/controller/PhabricatorFileInfoController.php

@@ -41,7 +41,7 @@ final class PhabricatorFileInfoController extends PhabricatorFileController {
     if ($ttl !== null) {
       $ttl_tag = id(new PHUITagView())
         ->setType(PHUITagView::TYPE_OBJECT)
-        ->setName(pht("Temporary"));
+        ->setName(pht('Temporary'));
       $header->addTag($ttl_tag);
     }