andk/cpanpm — pull request #44 by miyagawa (2013-08-23 00:33:00+00:00)
Title: Support numeric in the second letter (i.e. P5P) as well

per https://github.com/andk/cpanpm/commit/7b24486ce6f2f42da10efa9d0b3b38cd94f9d858#commitcomment-3927039