Move the filter on the level of the record from backends to the logger (in order to have consistent behaviour)

backend.go

@@ -26,12 +26,9 @@ func NewStdoutBackend() (b *StdoutBackend) {
 }
 
 func (b StdoutBackend) Write(r *Record) error {
-	if r.Level >= b.level {
-		//check back for auto dereferencing
 	text := (*b.formatter)(r)
-		b.l.Write([]byte(text))
-	}
-	return nil
+	_, err := io.WriteString(b.l, text)
+	return err
 }
 
 func (b *StdoutBackend) SetLevel(l Level) {

logger.go

@@ -31,10 +31,11 @@ func (l *Logger) SetLevel(level Level) {
 func (l *Logger) Log(level Level, m string) {
 	r := NewRecord(level, m)
 	for _, backend := range l.backends {
-		//Should be dereferenced automatically ?
+		if r.Level >= backend.Level() {
 			backend.Write(r)
 		}
 	}
+}
 
 func (l *Logger) Debug(text string) {
 	l.Log(DEBUG, text)