Log Message:
-----------
Fix typo, per Andreas Seltenreich.
Modified Files:
--------------
pgsql-server/doc/src/sgml/ref:
psql-ref.sgml (r1.119 -> r1.120)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/doc/src/sgml/ref/psql-ref.sgml.diff?r1=1.119&r2=1.120)