Log Message:-----------Restore pl/pgsql default install release note item.
Modified Files:-------------- pgsql/doc/src/sgml: release-9.0.sgml (r2.41 -> r2.42) (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/release-9.0.sgml?r1=2.41&r2=2.42)
