Log Message:
-----------
Fix doc bug: to_timestamp() returns timestamptz, not plain timestamp.
Modified Files:
--------------
pgsql-server/doc/src/sgml:
func.sgml (r1.207 -> r1.208)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/doc/src/sgml/func.sgml.diff?r1=1.207&r2=1.208)