Log Message:
-----------
Correct result type of convert_to, per Pavel Stehule.
Modified Files:
--------------
pgsql/doc/src/sgml:
func.sgml (r1.416 -> r1.417)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/func.sgml?r1=1.416&r2=1.417)