fix golint issues in zrpc (#531)

zrpc/internal/rpclogger.go

@@ -12,62 +12,77 @@ const errorLevel = 2
 
 var once sync.Once
 
+// A Logger is a rpc logger.
 type Logger struct{}
 
+// InitLogger initializes the rpc logger.
 func InitLogger() {
 	once.Do(func() {
 		grpclog.SetLoggerV2(new(Logger))
 	})
 }
 
+// Error logs the given args into error log.
 func (l *Logger) Error(args ...interface{}) {
 	logx.Error(args...)
 }
 
+// Errorf logs the given args with format into error log.
 func (l *Logger) Errorf(format string, args ...interface{}) {
 	logx.Errorf(format, args...)
 }
 
+// Errorln logs the given args into error log with newline.
 func (l *Logger) Errorln(args ...interface{}) {
 	logx.Error(args...)
 }
 
+// Fatal logs the given args into error log.
 func (l *Logger) Fatal(args ...interface{}) {
 	logx.Error(args...)
 }
 
+// Fatalf logs the given args with format into error log.
 func (l *Logger) Fatalf(format string, args ...interface{}) {
 	logx.Errorf(format, args...)
 }
 
+// Fatalln logs args into error log with newline.
 func (l *Logger) Fatalln(args ...interface{}) {
 	logx.Error(args...)
 }
 
+// Info ignores the grpc info logs.
 func (l *Logger) Info(args ...interface{}) {
 	// ignore builtin grpc info
 }
 
+// Infoln ignores the grpc info logs.
 func (l *Logger) Infoln(args ...interface{}) {
 	// ignore builtin grpc info
 }
 
+// Infof ignores the grpc info logs.
 func (l *Logger) Infof(format string, args ...interface{}) {
 	// ignore builtin grpc info
 }
 
+// V checks if meet required log level.
 func (l *Logger) V(v int) bool {
 	return v >= errorLevel
 }
 
+// Warning ignores the grpc warning logs.
 func (l *Logger) Warning(args ...interface{}) {
 	// ignore builtin grpc warning
 }
 
+// Warningf ignores the grpc warning logs.
 func (l *Logger) Warningf(format string, args ...interface{}) {
 	// ignore builtin grpc warning
 }
 
+// Warningln ignores the grpc warning logs.
 func (l *Logger) Warningln(args ...interface{}) {
 	// ignore builtin grpc warning
 }