Log Message:-----------Add missing quote, per Dave Page.
Modified Files:-------------- pgsql/doc/src/sgml: docguide.sgml (r1.55 -> r1.56) (http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/docguide.sgml.diff?r1=1.55&r2=1.56)