CBQE-0: minor changes in cbRecoverytests

Change-Id: I919ce49ff2ed922517a4f1ff29d743f9c9301008
Reviewed-on: http://review.couchbase.org/33431
Reviewed-by: Andrei Baranouski <andrei.baranouski@gmail.com>
Tested-by: Andrei Baranouski <andrei.baranouski@gmail.com>