Bug#664520: lintian: [new check] Unusual documentation package name, foo-docs

[Scott Kitterman <debian@kitterman.com>]

Package: lintian
Version: 2.5.5
Severity: wishlist

It turns out a few people (including me) have been using -docs for
documentation package names intead of -doc:

$ zcat Packages.gz | grep-dctrl -F Package -e '^.*-doc$' -ns Package | wc -l
2415

$ zcat Packages.gz | grep-dctrl -F Package -e '^.*-docs$' -ns Package | wc -l
42

Although I don't believe there's anything in policy about, I think it
deserves an information level tag to suggest naming the binary foo-doc
instead.  Perhaps unusual-documentation-package-name.