Comment 5 for bug 727738

> I don't know what policy/lintian say about dpkg-divert invocations though.

Policy has no problem; lintian stands no more chance of grokking dpkg-divert invocations than developers do. :P

> This is how I re-created the situation to test. I don't know if it covers
> all the possible situations that machines can be in.

There may be other cases not handled, but I can confirm that your proposed fix for this issue is logically correct (including the rm /usr/bin/screen).