Log Message:
-----------
Change explanation of pg_switch_xlog()'s return value to match code.
Modified Files:
--------------
pgsql/doc/src/sgml:
func.sgml (r1.469 -> r1.470)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/func.sgml?r1=1.469&r2=1.470)