Log Message:
-----------
Improve broadcast wording for failover/clustering documentation.
Modified Files:
--------------
pgsql/doc/src/sgml:
failover.sgml (r1.5 -> r1.6)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/failover.sgml.diff?r1=1.5&r2=1.6)