Fix return value from bucket_engine test
Fix return value from bucket_engine test

Change-Id: I3aa70ba639a50b11964be9386a1c3110d1bd1eb1
Reviewed-on: http://review.couchbase.org/15161
Tested-by: Chiyoung Seo <8b279095f11c26cc21045fda5a3e51debb005aa9@gmail.com>
Reviewed-by: Chiyoung Seo <8b279095f11c26cc21045fda5a3e51debb005aa9@gmail.com>
Reviewed-on: http://review.couchbase.org/15402

membase/bucket_engine,couchbase/bucket_engine,membase/bucket_engine,couchbase/bucket_engine,membase/bucket_engine,membase/bucket_engine,couchbase/bucket_engine,couchbase/bucket_engine