CHANGELOG-3.5: update for #11427
CHANGELOG-3.5: update for #11427

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