MB-5829 Don't convert expiration time 0 to the absolute time
MB-5829 Don't convert expiration time 0 to the absolute time

Change-Id: I3cd795682c30e28105172d7b47dbaab8d2dbbe0a
Reviewed-on: http://review.couchbase.org/18032
Reviewed-by: Chiyoung Seo <8b279095f11c26cc21045fda5a3e51debb005aa9@gmail.com>
Tested-by: Chiyoung Seo <8b279095f11c26cc21045fda5a3e51debb005aa9@gmail.com>

sriganes/ep-engine,abhinavdangeti/ep-engine,teligent-ru/ep-engine,owendCB/ep-engine,teligent-ru/ep-engine,daverigby/ep-engine,membase/ep-engine,jimwwalker/ep-engine,owendCB/ep-engine,teligent-ru/ep-engine,daverigby/kv_engine,jimwwalker/ep-engine,hisundar/ep-engine,hisundar/ep-engine,daverigby/kv_engine,daverigby/kv_engine,membase/ep-engine,daverigby/kv_engine,sriganes/ep-engine,couchbase/ep-engine,hisundar/ep-engine,hisundar/ep-engine,teligent-ru/ep-engine,membase/ep-engine,jimwwalker/ep-engine,daverigby/ep-engine,couchbase/ep-engine,daverigby/ep-engine,abhinavdangeti/ep-engine,abhinavdangeti/ep-engine,abhinavdangeti/ep-engine,abhinavdangeti/ep-engine,membase/ep-engine,couchbase/ep-engine,sriganes/ep-engine,couchbase/ep-engine,sriganes/ep-engine,owendCB/ep-engine,jimwwalker/ep-engine,owendCB/ep-engine,daverigby/ep-engine