split auth from other logging

[Kai Schaetzl]

This works for splitting off lmtp traffic, for instance.

syslog_facility = uucp

rsyslog:

:msg, contains, "lmtp(" -/var/log/dovecot/lmtp.log
& stop

uucp.=debug                     -/var/log/dovecot/debug.log
uucp.=info                      -/var/log/dovecot/dovecot.log
uucp.=warn                      -/var/log/dovecot/warn.log
uucp.=err                       -/var/log/dovecot/error.log
uucp.=crit                      -/var/log/warn.log

plus:
auth,authpriv,cron,daemon,mail,uucp,news.none       -/var/log/syslog
(whatever you don't want to see in syslog)

Kai