Log Message:
-----------
Add mention that .pgpass localhost matches tcp and unix domain sockets.
Modified Files:
--------------
pgsql/doc/src/sgml:
libpq.sgml (r1.197 -> r1.198)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/libpq.sgml.diff?r1=1.197&r2=1.198)