CBQE-0: fix typo

Change-Id: Ic952e01d32ed0968e55deae2457887060a146ac2
Reviewed-on: http://review.couchbase.org/37240
Reviewed-by: Iryna Mironava <irynamironava@yandex.ru>
Tested-by: Iryna Mironava <irynamironava@yandex.ru>