CBQE-0 fix typo in conf file

Change-Id: I19ac068cbe50d865e2eac61900d452f1f9aa71ab
Reviewed-on: http://review.couchbase.org/31722
Reviewed-by: Iryna Mironava <irynamironava@yandex.ru>
Tested-by: Iryna Mironava <irynamironava@yandex.ru>