Extra '?' in Google Geocode query causes batch update query failure

The current code for the Google Geocode script results in a query that looks like the following:

http://maps.google.com/maps/geo?q=?481+Giddyup+Dr,++Mytown,++Mystate,++11223

The extra '?' after the q= is ignored on the first few queries, but after 50-100 queries, Google starts to fail the requests with an error indicating that the request looks like a hacking attempt.

Line 123 of the Google Geocode script looks like this:

$query = 'http://' . self::$_server . self::$_uri . '?' . $add . $arg;

self:$_uri is set to '?q=' at the top of the script, so simply modifying this to:

$query = 'http://' . self::$_server . self::$_uri . $add . $arg;

takes care of the issue.