Log Message:-----------Update archive_command example to use || test, rather than if [].
Modified Files:-------------- pgsql/doc/src/sgml: backup.sgml (r2.111 -> r2.112) (http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/backup.sgml?r1=2.111&r2=2.112)
