Bug#792191: lintian: does no longer report unused-override

[Jakub Wilk <jwilk@debian.org>]

Here's how to reproduce it using only packages from the archive:

$ lintian --no-cfg -I debconf_1.5.59_all.deb | grep -w unused
I: debconf: unused-override postrm-does-not-purge-debconf

$ lintian --no-cfg -I debconf_1.5.59_all.deb debconf-doc_1.5.59_all.deb | grep -w unused
[nothing]

But it turns out the latter is non-deterministic. About half the time I 
get:

$ lintian --no-cfg -I debconf_1.5.59_all.deb debconf-doc_1.5.59_all.deb | grep -w unused
I: debconf: unused-override postrm-does-not-purge-debconf

--
Jakub Wilk