Fix NewProxyServer

Different OSes need different args.  This is not a great fix, but better
than adding an arg to Windows which doesn't need it.

cmd/kube-proxy/app/server_test.go

@@ -162,7 +162,7 @@ func TestProxyServerWithCleanupAndExit(t *testing.T) {
 		}
 		options.CleanupAndExit = true
 
-		proxyserver, err := NewProxyServer(options.config, options.CleanupAndExit, options.CleanupIPVS, options.scheme, options.master)
+		proxyserver, err := NewProxyServer(options)
 
 		assert.Nil(t, err, "unexpected error in NewProxyServer, addr: %s", addr)
 		assert.NotNil(t, proxyserver, "nil proxy server obj, addr: %s", addr)