USPS service name gets truncated in the spanish translation of Ubercart

The theme function theme_uc_usps_option_label() assumes the service name string starts with 'U.S.P.S. ' and truncates the first 9 letters of it. When using a translation of Ubercart, in my case is spanish, the service name string doesn't start with those letter thus the code truncates part of the name (the first 9 letters to be exact). This is an easy fix, though. Just replace the following in line 496 of uc_usps.module:

$output .= substr($service, 9);

with this:

$output .= str_replace('U.S.P.S. ', '', $service);

I would submit a patch but I don't know how. I know this could be done overriding the theme function in template.php of your theme but maybe is safer this way. I think assuming a string will start with a particular set of letters when the string is loaded dynamically is a bit wrong.