Use XPath to find <link> elements (ignore atom:link) (bug #750815)

(cherry picked from commit e662d5d9

)

Change-Id: I9b7277d7776278a93d90063b5877209244387102
Signed-off-by: Darryl Hamilton <darrylh@catalyst.net.nz>

htdocs/lib/pear/XML/Feed/Parser/RSS2.php

@@ -321,7 +321,8 @@ class XML_Feed_Parser_RSS2 extends XML_Feed_Parser_Type
      */
     function getLink($offset, $attribute = 'href', $params = array())
     {
-        $links = $this->model->getElementsByTagName('link');
+        $xPath = new DOMXPath($this->model);
+        $links = $xPath->query('//link');
 
         if ($links->length <= $offset) {
             return false;