set textFormatter as default formatter

formatter.go

@@ -1,15 +1,11 @@
 package log
 
-import (
-	"fmt"
-	"time"
-)
-
 // Formatter is a interface used to implement a custom Formatter
 type Formatter interface {
 	Format(level Level, msg string, logger *Logger) []byte
 }
 
+/*
 // simpleFormatter is default formmatter
 type simpleFormatter struct {
 }
@@ -19,3 +15,4 @@ func (f *simpleFormatter) Format(level Level, msg string, logger *Logger) []byte
 	time := time.Now().Format("15:04:05.000")
 	return []byte(fmt.Sprintf("%s %s %s\n", time, level.String(), msg))
 }
+*/

logger.go

@@ -22,7 +22,9 @@ type Logger struct {
 func New() *Logger {
 	return &Logger{
 		Level: INFO,
-		Formatter: new(simpleFormatter),
+		Formatter: &TextFormatter{
+			TimeFormat: "2006-01-02 15:04:05.000",
+		},
 		Out: os.Stdout,
 	}
 }