Bug#881266: apt-files fails with LZ4F error on calling apt-helper with xargs

[Ara Keary <ara.keary@gmail.com>]

> It's definitely not an apt-file problem if apt-helper exits. It seems to me that
> the file is broken. I'd assume your memory or hard disk is failing, or you force
> rebooted while/after apt(-get) update was running and writing that file and we
> maybe do not sync it correctly. Or maybe it's a bug in lz4 decompressor - I don't
> know.
>
> In either case, I've not seen this before. You could also try using "lz4cat"
> from liblz4-tool, that should fail as well. I'd say upload the file, but it's
> probably about 60-90 MB or so, so probably not really an option.
>

It is quite strange indeed: i have installed liblz4-tool, and the
described behaviour has vanished.
After purging liblz4-tool, the correct exptected behvaiour of apt-file remains
Maybe this was due to a problem with the synchronisation of the debian
packages...

Sorry for the noise

Best

Ara