Log Message:
-----------
Fix segfault with "SHOW pool_status".
Modified Files:
--------------
pgpool-II:
pool_process_query.c (r1.67 -> r1.68)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgpool/pgpool-II/pool_process_query.c.diff?r1=1.67&r2=1.68)