fix go lint errors in util

pkg/util/logs.go

@@ -31,14 +31,16 @@ func init() {
 	flag.Set("logtostderr", "true")
 }
 
-// This serves as a bridge between the standard log package and the glog package.
+// GlogWriter serves as a bridge between the standard log package and the glog package.
 type GlogWriter struct{}
 
+// Write implements the io.Writer interface.
 func (writer GlogWriter) Write(data []byte) (n int, err error) {
 	glog.Info(string(data))
 	return len(data), nil
 }
 
+// InitLogs initializes logs the way we want for kubernetes.
 func InitLogs() {
 	log.SetOutput(GlogWriter{})
 	log.SetFlags(0)
@@ -46,10 +48,12 @@ func InitLogs() {
 	go Forever(glog.Flush, *logFlushFreq)
 }
 
+// FlushLogs flushes logs immediately.
 func FlushLogs() {
 	glog.Flush()
 }
 
+// NewLogger creates a new log.Logger which sends logs to glog.Info.
 func NewLogger(prefix string) *log.Logger {
 	return log.New(GlogWriter{}, prefix, 0)
 }