CBQE-0: fix typo

Change-Id: Ibcdb9235feeeb73592373a943f6b12809410410d
Reviewed-on: http://review.couchbase.org/29604
Reviewed-by: Iryna Mironava <irynamironava@yandex.ru>
Tested-by: Iryna Mironava <irynamironava@yandex.ru>