None of the release xfce4-pulseaudio-plugin.tar.gz contain translation .*po files downloaded from Transifex. That's why resulting package goes without localization. Please fix it in the next release. BTW, please check new translations from Transifex.
Thank you for reporting it. I haven't noticed the tarball is missing .po files. I will look into it. If you have an experience with autotools I would appreciate help. Unfortunately, automatic syncing po files with Transifex doesn't work (for some reason there are no translation commits in git repository). In the past I was copying files manually but that's a lot of work so I can only do it every year or so. Do you know if it is possible to download .po files from transifex all at once?
(In reply to Andrzej from comment #1) Thanks that you figured out it. > Unfortunately, automatic syncing po files with Transifex doesn't work (for > some reason there are no translation commits in git repository). I am not a developer, but please take a look how it works for other plugins. Translation file from Transifex are updated regularly from what I see...
Transifex is now linked to git repository.