fix golint failures of cmd/kube-proxy/app

cmd/kube-proxy/app/server.go

@@ -196,6 +196,7 @@ func (o *Options) AddFlags(fs *pflag.FlagSet) {
 		"Options are:\n"+strings.Join(utilfeature.DefaultFeatureGate.KnownFeatures(), "\n"))
 }
 
+// NewOptions returns initialized Options
 func NewOptions() *Options {
 	return &Options{
 		config:      new(kubeproxyconfig.KubeProxyConfiguration),
@@ -218,11 +219,11 @@ func (o *Options) Complete() error {
 
 	// Load the config file here in Complete, so that Validate validates the fully-resolved config.
 	if len(o.ConfigFile) > 0 {
-		if c, err := o.loadConfigFromFile(o.ConfigFile); err != nil {
+		c, err := o.loadConfigFromFile(o.ConfigFile)
+		if err != nil {
 			return err
-		} else {
-			o.config = c
 		}
+		o.config = c
 
 		if err := o.initWatcher(); err != nil {
 			return err
@@ -295,6 +296,7 @@ func (o *Options) Validate(args []string) error {
 	return nil
 }
 
+// Run runs the specified ProxyServer.
 func (o *Options) Run() error {
 	defer close(o.errCh)
 	if len(o.WriteConfigTo) > 0 {
@@ -415,6 +417,7 @@ func (o *Options) loadConfig(data []byte) (*kubeproxyconfig.KubeProxyConfigurati
 	return proxyConfig, nil
 }
 
+// ApplyDefaults applies the default values to Options.
 func (o *Options) ApplyDefaults(in *kubeproxyconfig.KubeProxyConfiguration) (*kubeproxyconfig.KubeProxyConfiguration, error) {
 	external, err := o.scheme.ConvertToVersion(in, v1alpha1.SchemeGroupVersion)
 	if err != nil {

cmd/kube-proxy/app/server_windows.go

@@ -24,6 +24,7 @@ import (
 	"errors"
 	"fmt"
 	"net"
+	// Enable pprof HTTP handlers.
 	_ "net/http/pprof"
 
 	"k8s.io/api/core/v1"