println is builtin function

logs/conn.go

@@ -63,7 +63,7 @@ func (c *connWriter) WriteMsg(when time.Time, msg string, level int) error {
 		defer c.innerWriter.Close()
 	}
 
-	c.lg.println(when, msg)
+	c.lg.writeln(when, msg)
 	return nil
 }
 

logs/console.go

@@ -80,7 +80,7 @@ func (c *consoleWriter) WriteMsg(when time.Time, msg string, level int) error {
 	if c.Colorful {
 		msg = strings.Replace(msg, levelPrefix[level], colors[level](levelPrefix[level]), 1)
 	}
-	c.lg.println(when, msg)
+	c.lg.writeln(when, msg)
 	return nil
 }
 

logs/logger.go

@@ -30,7 +30,7 @@ func newLogWriter(wr io.Writer) *logWriter {
 	return &logWriter{writer: wr}
 }
 
-func (lg *logWriter) println(when time.Time, msg string) {
+func (lg *logWriter) writeln(when time.Time, msg string) {
 	lg.Lock()
 	h, _, _ := formatTimeHeader(when)
 	lg.writer.Write(append(append(h, msg...), '\n'))