DOMDocument::loadHTML() warning

feeds_tamper_absolute_url_callback() uses DOM functions to parse HTML. It produces warnings when HTML is not good enough. I recommend the following changes:

--- absolute_url.inc.orig       2013-05-14 11:27:44.000000000 +0400
+++ absolute_url.inc    2013-05-14 11:22:16.000000000 +0400
@@ -29,6 +29,7 @@
     $dom = new DOMDocument();
   }
 
+  libxml_use_internal_errors(true);
   $dom->loadHTML($field);
   $urls = array();
   $tags = array('a' => 'href', 'img' => 'src', 'iframe' => 'src',

or

--- absolute_url.inc.orig       2013-05-14 11:27:44.000000000 +0400
+++ absolute_url.inc    2013-05-14 11:28:17.000000000 +0400
@@ -29,7 +29,7 @@
     $dom = new DOMDocument();
   }
 
-  $dom->loadHTML($field);
+  @$dom->loadHTML($field);
   $urls = array();
   $tags = array('a' => 'href', 'img' => 'src', 'iframe' => 'src',
                 'script' => 'src', 'object' => 'codebase', 'link' => 'href',