[gentoo-user] Patch file for cdrtools to allow --duplicates-once

[Andrey Vul]

Is there a patch file to patch mkisofs to use the --duplicates-once
option during generation of iso9960/UDF images?
The problem is that the one that exists right now, the patch (against
the official sources) cannot be found because the original site
(bootcd.ru) is permanently down.
Or do I need to make a table of SHA-1s to weed out the identical files?
-- 
Andrey Vul