CBQE-1432 - A small change in uniXDCR code. Actual upload for CBQE-1432 is at - http://review.couchbase.org/#/c/31129/

Change-Id: Ia77a8bbdceda79ae125f0110fae3ee5213f13e88
Reviewed-on: http://review.couchbase.org/31130
Reviewed-by: Shashank Gupta1 <shashank.gupta1@globallogic.com>
Tested-by: Shashank Gupta1 <shashank.gupta1@globallogic.com>
Reviewed-by: Sangharsh Agarwal <sangharsh.agarwal@globallogic.com>