func printInternalRaftRequest(entry raftpb.Entry) {
	var rr etcdserverpb.InternalRaftRequest
	if err := rr.Unmarshal(entry.Data); err == nil {
		fmt.Printf("%4d\t%10d\tnorm\t%s", entry.Term, entry.Index, rr.String())
	}
}
func printInternalRaftRequest(entry raftpb.Entry) {
	var rr etcdserverpb.InternalRaftRequest
	if err := rr.Unmarshal(entry.Data); err == nil {
		fmt.Printf("%4d\t%10d\tnorm\t%s", entry.Term, entry.Index, rr.String())
	}
}
// The 4 print functions below print the entry format based on there types
// printInternalRaftRequest is used to print entry information for IRRRange, IRRPut,
// IRRDeleteRange and IRRTxn entries