raft: update log info and annotation
raft: update log info and annotation

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