Bug#807493: altree: Produces empty binary package

[Dominic Hargreaves <dom@earth.li>]

Source: altree
Version: 1.3.1-3
Severity: grave
Justification: package not usable
Tags: sid
X-Debbugs-Cc: debian-perl@lists.debian.org

The last upload, fixing #807423, unfortunately started creating empty
binary packages on most (but not all) architectures. See for example

https://packages.debian.org/sid/amd64/altree/filelist
https://packages.debian.org/sid/armel/altree/filelist
https://packages.debian.org/sid/armhf/altree/filelist
https://packages.debian.org/sid/i386/altree/filelist

I can't see from a quick glance what is going on here; CC-ing
debian-perl in case anyone can help.

Cheers,
Dominic.