The existing Audit code forgot to set authorPHID

Summary:
The audit tools has many false positive about Author Not
Matching with Revision. The fix is to set the authorPHID which was
missing in the existing code

Test Plan:
run reparse.php and it doesn't generate false positive result
anymore.

Reviewers: nh, epriestley

Reviewed By: epriestley

CC: aran

Differential Revision: https://secure.phabricator.com/D2119

src/applications/repository/worker/owner/PhabricatorRepositoryCommitOwnersWorker.php

@@ -111,6 +111,7 @@ final class PhabricatorRepositoryCommitOwnersWorker
         $revision_author_phid = $revision->getAuthorPHID();
         $revision_reviewedby_phid = $revision->loadReviewedBy();
         $commit_reviewedby_phid = $data->getCommitDetail('reviewerPHID');
+        $commit_author_phid = $data->getCommitDetail('authorPHID');
         if ($revision_author_phid !== $commit_author_phid) {
           $reasons[] = "Author Not Matching with Revision";
         }