CBIT-532: fix typo

Change-Id: Ic70958718048354cdb226a7f61f1844a8f2dba2a
Reviewed-on: http://review.couchbase.org/36200
Tested-by: Eric Limare <eric.limare@couchbase.com>
Reviewed-by: Chris Hillery <ceej@couchbase.com>
Reviewed-by: Eric Limare <eric.limare@couchbase.com>