cvs diff -u potx.inc 
Index: potx.inc
===================================================================
RCS file: /cvs/drupal-contrib/contributions/modules/potx/Attic/potx.inc,v
retrieving revision 1.1.2.17.2.7.2.9
diff -u -r1.1.2.17.2.7.2.9 potx.inc
--- potx.inc	9 Sep 2008 12:56:00 -0000	1.1.2.17.2.7.2.9
+++ potx.inc	10 Sep 2008 09:36:08 -0000
@@ -317,7 +317,7 @@
     // Store the generated output in the given file storage.
     if (!isset($_potx_store[$file_name])) {
       $_potx_store[$file_name] = array(
-        'header'  => $header_callback($file_name, $template_export_langcode, $translation_export_langcode, $api_version),
+        'header'  => $header_callback($file_name, $template_export_langcode, $api_version),
         'sources' => $file_list,
         'strings' => $output,
         'count'   => 1,