Log Message:-----------Add pg_service.conf documentation for libpq.
Modified Files:-------------- pgsql/doc/src/sgml: libpq.sgml (r1.203 -> r1.204) (http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/libpq.sgml.diff?r1=1.203&r2=1.204)
