Log Message:
Update to 1.303. From the changelog:

- fixes RT 121752: Fix typos referencing wrong section of RFC 3548
  (John Wittkoski)
- fixes RT 107998 by making the decode methods case insensitive
  as encoding will always use uppercase (Chase Whitener)

I don't feel very MAINTAINERy about this one, so I'll let pkgsrc-users@ have at it.