Update mail/spamass-milter to 0.4.0.

Brief summary of changes (taken from upstream release announcement):

- -C option to change the default reject code
- -S option to specify a path to sendmail (for the -x option)
- -R option to specify the rejection message
- -a option to skip messages that were authenticated
- IPv6 address support
- zombie process fix for the - option introduced in 0.3.2

Some of these changes (notably the -R and -a flags and the IPv6
support) were previously included in the port via patch files, which
are now unneeded and have been removed.


git-svn-id: svn+ssh://svn.freebsd.org/ports/head@371495 35697150-7ecd-e111-bb59-0022644237b5