CBQE-0: fix ep-engine access log tests

Change-Id: Iab39ab734bc9197be899e91fa318ca6adad022f8
Reviewed-on: http://review.couchbase.org/44511
Reviewed-by: Sangharsh Agarwal <sangharsh.agarwal@globallogic.com>
Tested-by: Sangharsh Agarwal <sangharsh.agarwal@globallogic.com>