Gak. I didn't realize y'all had changed things to **NOT** read
/etc/mail/spamaassin/*
for config files.
When I symlink /usr/local/etc/mail/spamassassin/local.cf to
/etc/mail/spamassassin/local.cf
it works as advertised.
PLEASE revert whatever change was made to NOT read /etc/mail/spamassassin
In rc3, with the following /etc/mail/spamassassin/local.cf:
$ cat local.cf
# This is the right place to customize your installation of SpamAssassin.
# See 'perldoc Mail::SpamAssassin::Conf' for details of what can be
# tweaked.
#