Minor changes

peer.go

@@ -17,7 +17,7 @@ const (
 	// The size of the output buffer for writing messages
 	outputBufferSize = 50
 	// Current protocol version
-	ProtocolVersion = 17
+	ProtocolVersion = 20
 )
 
 type DiscReason byte
@@ -603,7 +603,7 @@ func (p *Peer) handleHandshake(msg *ethwire.Msg) {
 	c := msg.Data
 
 	if c.Get(0).Uint() != ProtocolVersion {
-		ethutil.Config.Log.Debugln("Invalid peer version. Require protocol:", ProtocolVersion)
+		ethutil.Config.Log.Debugf("Invalid peer version. Require protocol: %d. Received: %d\n", ProtocolVersion, c.Get(0).Uint())
 		p.Stop()
 		return
 	}