Log Message:
-----------
fix bug in health_check(). It made wrong reports if secondary goes
down. Per Bunji Nagahashi.
Modified Files:
--------------
pgpool:
child.c (r1.3 -> r1.4)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgpool/pgpool/child.c.diff?r1=1.3&r2=1.4)