CBQE-0: fix typo

Change-Id: Ib7cff1bbdcbcd3cbc6cd7ba6909565e46d763f66
Reviewed-on: http://review.couchbase.org/31190
Reviewed-by: Iryna Mironava <irynamironava@yandex.ru>
Tested-by: Iryna Mironava <irynamironava@yandex.ru>