CBQE-0 update output in assertion check

Change-Id: I5acd19d09ff83b830db954fbf0b7e54f42d5d067
Reviewed-on: http://review.couchbase.org/36126
Tested-by: Thuan Nguyen <soccon@gmail.com>
Tested-by: buildbot <build@couchbase.com>
Reviewed-by: Tommie McAfee <tommie@couchbase.com>