Log Message:
-----------
Clarify SELECT FOR UPDATE behavior in docs.
Modified Files:
--------------
pgsql/doc/src/sgml/ref:
select.sgml (r1.130 -> r1.131)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/ref/select.sgml?r1=1.130&r2=1.131)