Bug#772992: lintian: spurious unused-override tags emitted sometimes

[Jakub Wilk <jwilk@debian.org>]

* Andreas Beckmann <anbe@debian.org>, 2014-12-12, 21:52:
> running lintian several times in sequence sometimes outputs spurious 
> unused-override tags:
>
> $ Lintian nvidia-graphics-drivers_340.65-1_amd64.changes
> W: nvidia-detect: binary-without-manpage usr/bin/nvidia-detect
> I: nvidia-driver: possible-documentation-but-no-doc-base-registration
> $ Lintian nvidia-graphics-drivers_340.65-1_amd64.changes
> W: nvidia-detect: binary-without-manpage usr/bin/nvidia-detect
> I: nvidia-driver: possible-documentation-but-no-doc-base-registration
> I: libnvidia-fbc1: unused-override non-dev-pkg-with-shlib-symlink       <==
> $ Lintian nvidia-graphics-drivers_340.65-1_amd64.changes
> W: nvidia-detect: binary-without-manpage usr/bin/nvidia-detect
> I: nvidia-driver: possible-documentation-but-no-doc-base-registration
> I: libgles2-nvidia: unused-override spelling-error-in-binary            <==
> $ Lintian nvidia-graphics-drivers_340.65-1_amd64.changes
> I: nvidia-driver: possible-documentation-but-no-doc-base-registration
> W: nvidia-detect: binary-without-manpage usr/bin/nvidia-detect
>
> (Lintian is a wrapper around lintian -i -I -E -v --pedantic that saves 
> the full log to a logfile and reports it to stdout through grep -v ^N)

I suspect that this is related to #792191.

--
Jakub Wilk