zip not a language code ??

Hi,

I'm seeing strange messages here
https://i18n.debian.org/l10n-pkg-status/l/lazarus.html


Does anyone have any thoughts on this?
Running msgfmt locally does not reveal any issues with these po files.
'zip' is obviously part of the file name, and nothing to do with the 
language code.
The language codes being fi, fr, hu etc.

Regards,
Peter