errbit/errbit — pull request #429 by danielbeardsley (2013-03-08 09:20:30+00:00)
Title: Error Email: add similar count to subject

It's pretty useful when visually scanning the messages in my inbox to
see the count in the subject instead of having to open the email.

The relative importance of an email roughly scales with similar_count,
so it's a fairly important piece of info.