pgsql: Trivial markup improvement.
Log Message:
-----------
Trivial markup improvement.
Modified Files:
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pgsql/doc/src/sgml:
func.sgml (r1.250 -> r1.251)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/func.sgml.diff?r1=1.250&r2=1.251)