Log Message:-----------Update GRANT USAGE on schema permission description.
Modified Files:-------------- pgsql/doc/src/sgml/ref: grant.sgml (r1.57 -> r1.58) (http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/ref/grant.sgml.diff?r1=1.57&r2=1.58)
