MB-100: Functional test fix to estests

w.r.t: http://review.couchbase.org/#/c/29116/

Change-Id: I1184b3b1283d73db54e2fa01478bd79b6a2ac20c
Reviewed-on: http://review.couchbase.org/29130
Reviewed-by: abhinav dangeti <abhinav.dangeti@gmail.com>
Tested-by: abhinav dangeti <abhinav.dangeti@gmail.com>