Log Message:
Update to 0.3.0nb1:
Add a patch from Yoshitaka Tokugawa provided in PR 26806, which
has also been added to the spamass CVS repository:

   Always use macro_b, so SA can do future/past validation.
   It is not a bug, but it makes SA happier.

   SA 2.x requires "($v/$Z)$?r with $r" part of Received: header.
   I don't think SA 3.x need this, but keep it for SA 2.x users.

   There is a bug in cmp_nocase_partial() function. Without my hack,
   cmp_nocase_partial("X-Spam-", "X-Spam") returns 0 which is
   incorrect behavior for this function.