Updates to any file in MediaWiki should be submitted as a unified diff against the files in CVS (cvs diff -u) FOR EACH AFFECTED BRANCH (the REL1_4 release branch is not the same as the current development work in HEAD), posted as a file attachment to a bug report in Bugzilla. Assurances that it's been tested are helpful.
Thanks. I'll do it today.
Can I post you answer to Meta:Requests_for_languageXX.php_update page?