[#3195] Use XPath to find <link> elements (ignore atom:link)

(cherry picked from commit f454e903ae32f109d47d753c43375ec56b4950a7)

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;
@@ -331,4 +332,4 @@ class XML_Feed_Parser_RSS2 extends XML_Feed_Parser_Type
     }
 }
 
-?>
\ No newline at end of file
+?>