proxy: fix gofmt violations

Signed-off-by: David Scott <dave.scott@docker.com>

alpine/packages/proxy/libproxy/proxy.go

@@ -4,8 +4,8 @@ package libproxy
 
 import (
 	"fmt"
-	"net"
 	"github.com/djs55/vsock"
+	"net"
 )
 
 // Proxy defines the behavior of a proxy. It forwards traffic back and forth
@@ -25,8 +25,6 @@ type Proxy interface {
 	BackendAddr() net.Addr
 }
 
-
-
 // NewProxy creates a Proxy according to the specified frontendAddr and backendAddr.
 func NewProxy(frontendAddr *vsock.VsockAddr, backendAddr net.Addr) (Proxy, error) {
 	switch backendAddr.(type) {