always include the remote address in connection log entries

in addition to the peer name

This is handy for debugging, especially in situations when there are
multiple connections in flight to the same peer.

router/connection.go

@@ -82,7 +82,7 @@ func (conn *RemoteConnection) BreakTie(Connection) ConnectionTieBreak { return T
 func (conn *RemoteConnection) Shutdown(error)                         {}
 
 func (conn *RemoteConnection) Log(args ...interface{}) {
-	log.Println(append(append([]interface{}{}, fmt.Sprintf("->[%s]:", conn.remote.FullName())), args...)...)
+	log.Println(append(append([]interface{}{}, fmt.Sprintf("->[%s|%s]:", conn.remoteTCPAddr, conn.remote.FullName())), args...)...)
 }
 
 func (conn *RemoteConnection) String() string {
@@ -296,7 +296,7 @@ func (conn *LocalConnection) run(actionChan <-chan ConnectionAction, finished ch
 	if err = conn.handshake(enc, dec, acceptNewPeer); err != nil {
 		return
 	}
-	log.Printf("->[%s] completed handshake with %s\n", conn.remoteTCPAddr, conn.remote.FullName())
+	conn.Log("completed handshake")
 
 	if err = conn.initHeartbeats(); err != nil { // [1]
 		return