fix html bug (li) fix comment for guest bug (form missing)

git-svn-id: http://piwigo.org/svn/trunk@3446 68402e56-0260-453c-a942-63ccdbb3a9ee

include/picture_comment.inc.php

@@ -196,7 +196,7 @@ $validated_clause.'
 
   if (!is_a_guest()
       or (is_a_guest() and $conf['comments_forall'])
-      and (isset($edit_comment) and ($edit_comment != null)))
+      or (empty($edit_comment)))
   {
     $key = get_comment_post_key($page['image_id']);
     $content = '';

template/yoga/comment_list.tpl

@@ -53,6 +53,6 @@
       {/if}
     </div>
   </div>
-<li>
+</li>
 {/foreach}
 </ul>