Log Message:
-----------
Fix invalid memory write in add_regex_pattern().
Modified Files:
--------------
pgpool-II:
pool_config.c (r1.63 -> r1.64)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgpool/pgpool-II/pool_config.c?r1=1.63&r2=1.64)