CBQE-0 fix failover test failed due to change in path.

Change-Id: I5b4c5f058e102c418092ce59e38c83932fe1555f
Reviewed-on: http://review.couchbase.org/35052
Tested-by: Thuan Nguyen <soccon@gmail.com>
Tested-by: buildbot <build@couchbase.com>
Reviewed-by: Thuan Nguyen <soccon@gmail.com>