CBQE-0: review py-failover.conf

Change-Id: I6e639f362fa0f1a37a07fc593fe2e6aa0629d055
Reviewed-on: http://review.couchbase.org/27069
Tested-by: buildbot <build@couchbase.com>
Reviewed-by: Andrei Baranouski <andrei.baranouski@gmail.com>
Tested-by: Andrei Baranouski <andrei.baranouski@gmail.com>