p2p: fix doEncHandshake documentation (#16184)

Author: 4000D

p2p/rlpx.go

@@ -121,10 +121,6 @@ func (t *rlpx) close(err error) {
 	t.fd.Close()
 }
 
-// doEncHandshake runs the protocol handshake using authenticated
-// messages. the protocol handshake is the first authenticated message
-// and also verifies whether the encryption handshake 'worked' and the
-// remote side actually provided the right public key.
 func (t *rlpx) doProtoHandshake(our *protoHandshake) (their *protoHandshake, err error) {
 	// Writing our handshake happens concurrently, we prefer
 	// returning the handshake read error. If the remote side
@@ -175,6 +171,10 @@ func readProtocolHandshake(rw MsgReader, our *protoHandshake) (*protoHandshake,
 	return &hs, nil
 }
 
+// doEncHandshake runs the protocol handshake using authenticated
+// messages. the protocol handshake is the first authenticated message
+// and also verifies whether the encryption handshake 'worked' and the
+// remote side actually provided the right public key.
 func (t *rlpx) doEncHandshake(prv *ecdsa.PrivateKey, dial *discover.Node) (discover.NodeID, error) {
 	var (
 		sec secrets