Log Message:
-----------
enhance logging to make it clear what kind of failover/failback
event ocuured.
Modified Files:
--------------
pgpool-II:
main.c (r1.2 -> r1.3)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgpool/pgpool-II/main.c.diff?r1=1.2&r2=1.3)