Log Message:
-----------
Improve our explanation of the OVERLAPS operator.
Per gripe from Frank van Vugt.
Modified Files:
--------------
pgsql/doc/src/sgml:
func.sgml (r1.516 -> r1.517)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/func.sgml?r1=1.516&r2=1.517)