Use new missinggo.SplitHostMaybePort implementation

client.go

@@ -2533,7 +2533,7 @@ func (me *Client) DHT() *dht.Server {
 
 func (me *Client) AddDHTNodes(nodes []string) {
 	for _, n := range nodes {
-		hmp := missinggo.SplitHostPort(n)
+		hmp := missinggo.SplitHostMaybePort(n)
 		ip := net.ParseIP(hmp.Host)
 		if ip == nil {
 			log.Printf("won't add DHT node with bad IP: %q", hmp.Host)

tracker/udp.go

@@ -250,7 +250,7 @@ func (c *udpClient) Connect() (err error) {
 	}
 	c.connectionId = connectRequestConnectionId
 	if c.socket == nil {
-		hmp := missinggo.SplitHostPort(c.url.Host)
+		hmp := missinggo.SplitHostMaybePort(c.url.Host)
 		if hmp.NoPort {
 			hmp.NoPort = false
 			hmp.Port = 80