CHANGELOG-3.5: update from 11564
CHANGELOG-3.5: update from 11564

cockroachdb/etcd,gyuho/etcd,mkumatag/etcd,mkumatag/etcd,li-ang/etcd,ajityagaty/etcd,etcd-io/etcd,etcd-io/etcd,mqliang/etcd,cockroachdb/etcd,gyuho/etcd,coreos/etcd,rnaveiras/etcd,mkumatag/etcd,ajityagaty/etcd,ajityagaty/etcd,dannysauer/etcd,mqliang/etcd,rnaveiras/etcd,rnaveiras/etcd,coreos/etcd,li-ang/etcd,mqliang/etcd,dannysauer/etcd,etcd-io/etcd