Bug#495370: lintian fails to report bad distribution in changelog

[bdale@gag.com (Bdale Garbee)]

Package: lintian
Version: 1.24.3

I'm unhappy about lintian ignoring UNRELEASED as a distribution in the 
changelog file as a result of the change made in response to #382327.

Intentionally changing the default behavior of lintian to not report a known 
error because "it's annoying during testing" makes no sense to me at all.  If
filtering this error is important to enough users, perhaps a new option would
be appropriate as an alternative to changing the default?

Please revert this change.

Bdale