style: format code with Gofumpt and Prettier

This commit fixes the style issues introduced in 6a6a2a5 according to the output
from Gofumpt and Prettier.

Details: #1771

internal/net/dialer.go

@@ -324,14 +324,14 @@ func (d *dialer) dial(ctx context.Context, network, addr string) (conn Conn, err
 	}()
 	log.Debugf("%s connection dialing to addr %s", network, addr)
 	err = safety.RecoverWithoutPanicFunc(func() (err error) {
-	if IsUDP(network) {
-		conn, err = quic.DialContext(ctx, addr, d.tlsConfig)
-	} else {
-		conn, err = d.npDialer.DialConnection(network, addr, d.der.Timeout)
-		if err != nil {
-			conn, err = d.der.DialContext(ctx, network, addr)
+		if IsUDP(network) {
+			conn, err = quic.DialContext(ctx, addr, d.tlsConfig)
+		} else {
+			conn, err = d.npDialer.DialConnection(network, addr, d.der.Timeout)
+			if err != nil {
+				conn, err = d.der.DialContext(ctx, network, addr)
+			}
 		}
-	}
 		return err
 	})()
 	if err != nil {

internal/net/grpc/option.go

@@ -493,14 +493,14 @@ func WithDialer(network string, der net.Dialer) Option {
 				g.dopts = make([]grpc.DialOption, 0, defaultDialOptionLength)
 			}
 			nt := net.NetworkTypeFromString(network)
-					switch nt {
-					case net.UDP, net.UDP4, net.UDP6:
-						nt = net.UDP
-					case net.UNIX, net.UNIXGRAM, net.UNIXPACKET:
-						nt = net.UNIX
-					default:
-						nt = net.TCP
-					}
+			switch nt {
+			case net.UDP, net.UDP4, net.UDP6:
+				nt = net.UDP
+			case net.UNIX, net.UNIXGRAM, net.UNIXPACKET:
+				nt = net.UNIX
+			default:
+				nt = net.TCP
+			}
 			g.dopts = append(g.dopts,
 				grpc.WithContextDialer(func(ctx context.Context, addr string) (net.Conn, error) {
 					log.Debugf("gRPC context Dialer for network %s, addr is %s", nt.String(), addr)

internal/servers/servers.go

@@ -73,10 +73,10 @@ func (l *listener) ListenAndServe(ctx context.Context) <-chan error {
 		if !l.servers[name].IsRunning() {
 			err := l.servers[name].ListenAndServe(ctx, ech)
 			if err != nil {
-			        select {
-			        case <-ctx.Done():
-			        case ech <- err:
-			        }
+				select {
+				case <-ctx.Done():
+				case ech <- err:
+				}
 			}
 		}
 	}
@@ -85,10 +85,10 @@ func (l *listener) ListenAndServe(ctx context.Context) <-chan error {
 		if !l.servers[name].IsRunning() {
 			err := l.servers[name].ListenAndServe(ctx, ech)
 			if err != nil {
-			        select {
-			        case <-ctx.Done():
-			        case ech <- err:
-			        }
+				select {
+				case <-ctx.Done():
+				case ech <- err:
+				}
 			}
 		}
 	}