Log Message:
-----------
Fixed small typo, missing 'l' in 'Cluserting'
Modified Files:
--------------
pgsql/doc/src/sgml:
failover.sgml (r1.10 -> r1.11)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/failover.sgml.diff?r1=1.10&r2=1.11)