Fix missing with_stats decorator for merge test
Fix missing with_stats decorator for merge test

Change-Id: I297a92961fb3e5dbeaecc8d62d6459c18997288b
Reviewed-on: http://review.couchbase.org/109893
Tested-by: Build Bot <80754af91bfb6d1073585b046fe0a474ce868509@couchbase.com>
Reviewed-by: Carlos Gonzalez <36e622408f153c22cbe9b942c093fb5a1daab1e3@couchbase.com>

couchbase/perfrunner,couchbase/perfrunner,couchbase/perfrunner,couchbase/perfrunner,couchbase/perfrunner,couchbase/perfrunner