Change the preamble for views in two ways:

1) drop unnecessary semicolon
2) start with <?php for extra security in the case that the server itself doesn't
   have short_tags enabled (the app won't work, but we need to make sure that we're
   still secure)

modules/comment/views/comment.html.php

@@ -1,4 +1,4 @@
-<? defined("SYSPATH") or die("No direct script access."); ?>
+<?php defined("SYSPATH") or die("No direct script access.") ?>
 <li id="gComment-<?= $comment->id; ?>">
   <p>
     <a href="#" class="gAuthor"><?= $comment->author ?></a>