Log Message:
-----------
Clarify documentation on PITR and warm standby on the fact that the standby
restore_command should report failure on non-existent .backup and .history
files. Tidy up some related text along the way.
Patch by Markus Bertheau, with some editing by Simon Riggs and myself.
Modified Files:
--------------
pgsql/doc/src/sgml:
backup.sgml (r2.115 -> r2.116)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/backup.sgml?r1=2.115&r2=2.116)