critic.t: Remove t/runtests from @DIRS

Signed-off-by: Niels Thykier <niels@thykier.net>
p/generate-html-docs: Fix perlcritic warning

Signed-off-by: Niels Thykier <niels@thykier.net>
L::C::Source: Sanity check package names read from d/control

Signed-off-by: Niels Thykier <niels@thykier.net>
WritingChecks.pod: Add explicit return to examples

We recommend third-party checks to return explicitly, so make sure the
examples reflect this.

Signed-off-by: Niels Thykier <niels@thykier.net>
c/debconf.pm: Use $info->binaries

Signed-off-by: Niels Thykier <niels@thykier.net>
d/rules: Pass an output dir to generate-html-docs

This ensures that the auto-generated docs are removed in clean.

Signed-off-by: Niels Thykier <niels@thykier.net>