I guess Google has changed their feed specs
He is the error I am getting
Unrecognized attribute: department (8599 warnings)
For more details on the status of your data feed, go to http://www.google.com/merchants/showfeedsummary?fid=3204011

So I looks like (department) has been replaced with (product_type]

Here is the original line of code in the Uc_Google_Base. Module V 2.3.1
$output .= "" . check_plain(implode(', ', $terms)) . "\n";

I have changed this line to read the following but cannot get it to work. It only brings back a blank XML file
$output .= "" . check_plain(implode(', ', $terms)) . "\n";

Any help on this would be greatly appreciated. Thanks in advance
Ubercart 2.2
Drupal 6