Log Message:
Updated to version 3.1.3.

Pkgsrc changes:
  - patch-bb for no longer necessary (integrated upstream).

Changes since version 3.1.2:
============================
- bug 4926: given a certain set of parameters to spamd and a specially
  formatted input message, users could cause spamd to execute arbitrary
  commands as the spamd user
- bug 4932: the userstate dir and userprefs file would not be created
  under certain conditions.