Update to 2.4.4

* LIBDKIM: Fix bug #SF1867839: 64-bit portability in rfc2822.c.
  Patch from Geoff Adams.
* Update for latest Authentication-Results: header draft.
* Take advantage of some more features that were introduced with
  milter v2 in sendmail 8.14.0:
* Report "hardfail" instead of "fail" on authentication failures,
  in compliance with the Authentication-Results: draft.
* Fix use of "UseSSPDeny" to include handling of unsigned messages.
* Replace "gentxt.csh" with more robust "dkim-genkey" utility.

And *lots* more (the package in pkgsrc was 2 years+ old)

See RELEASE_NOTES for all the details

(adrianp)