#2798 fix assign operation not take effect

modules/log/log.go

@@ -23,10 +23,10 @@ func NewLogger(bufLen int64, mode, config string) {
 	logger := newLogger(bufLen)
 
 	isExist := false
-	for _, l := range loggers {
+	for i, l := range loggers {
 		if l.adapter == mode {
 			isExist = true
-			l = logger
+			loggers[i] = logger
 		}
 	}
 	if !isExist {