Log Message:
-----------
Fix assorted memory leaks in pg_hba.conf parsing. Over a sufficiently
large number of SIGHUP cycles, these would have run the postmaster out
of memory. Noted while testing memory-leak scenario in postgresql.conf
configuration-change-printing patch.
Modified Files:
--------------
pgsql/src/backend/libpq:
hba.c (r1.191 -> r1.192)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/libpq/hba.c?r1=1.191&r2=1.192)