Fix an exception in Ponder comment saving.

Summary:
Add a `setViewer()` so that PHID loading doesn't throw.

Also remove a period from a button because none of the others have one.

Test Plan: Saved a comment successfully.

Reviewers: epriestley

Reviewed By: epriestley

CC: aran, Korvin

Differential Revision: https://secure.phabricator.com/D4202

src/applications/ponder/controller/PonderCommentSaveController.php

@@ -18,6 +18,7 @@ final class PonderCommentSaveController extends PonderController {
 
     $target = $request->getStr('target');
     $objects = id(new PhabricatorObjectHandleData(array($target)))
+      ->setViewer($user)
       ->loadHandles();
     if (!$objects) {
       return new Aphront404Response();

src/applications/ponder/view/PonderAddAnswerView.php

@@ -48,7 +48,7 @@ final class PonderAddAnswerView extends AphrontView {
           ->setUser($this->user))
       ->appendChild(
         id(new AphrontFormSubmitControl())
-          ->setValue($is_serious ? 'Submit' : 'Make it so.'));
+          ->setValue($is_serious ? 'Submit' : 'Make it so'));
 
     $preview =
       '<div class="aphront-panel-flush">'.