commit 88d1f6e272f29d65921fe4769c4a99e06aa457eb
Author: Shane Auckland <shane.auckland@gmail.com>
Date:   Fri May 10 23:42:28 2013 +0100

    1896060-new_changes

diff --git a/core/modules/aggregator/aggregator.pages.inc b/core/modules/aggregator/aggregator.pages.inc
index d926179..0c71d36 100644
--- a/core/modules/aggregator/aggregator.pages.inc
+++ b/core/modules/aggregator/aggregator.pages.inc
@@ -331,7 +331,7 @@ function template_preprocess_aggregator_item(&$variables) {
     $variables['categories'][$category->cid] = l($category->title, 'aggregator/categories/' . $category->cid);
   }
 
-  $variables['attributes'] = new Attribute(array('class' => array('feed-item')));
+  $variables['attributes']['class'][] = 'feed-item';
 }
 
 /**
@@ -622,5 +622,5 @@ function template_preprocess_aggregator_feed_source(&$variables) {
     $variables['last_checked'] = l($variables['last_checked'], 'admin/config/services/aggregator');
   }
 
-  $variables['attributes'] = new Attribute(array('class' => array('feed-source')));
+  $variables['attributes']['class'][] = 'feed-source';
 }