CBQE-0: minor fixes in cbRecoverytests

Change-Id: I3ec3830c06b8c86341eeab187526d2e09ffb7714
Reviewed-on: http://review.couchbase.org/32729
Reviewed-by: Andrei Baranouski <andrei.baranouski@gmail.com>
Tested-by: Andrei Baranouski <andrei.baranouski@gmail.com>