CBQE-0:fix conf join file

Change-Id: I730ffa4baa080a99e46d6b04d556c0c97ba016a4
Reviewed-on: http://review.couchbase.org/33740
Reviewed-by: Iryna Mironava <irynamironava@yandex.ru>
Tested-by: Iryna Mironava <irynamironava@yandex.ru>