Log Message:
-----------
Docs for behaviour change of drop database during Hot Standby
Adding missing docs for previous Hot Standby patch.
Modified Files:
--------------
pgsql/doc/src/sgml:
backup.sgml (r2.133 -> r2.134)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/backup.sgml?r1=2.133&r2=2.134)