add log

routers/api/v1/node.go

@@ -175,12 +175,13 @@ func UpdateNode(c *gin.Context){
 	err = mv.Wait()
 	if err != nil {
 		log.Println("mv1",err)
+		log.Println("stderr:",serr.String())
 		appG.Response(http.StatusOK, e.MV_ERROR, err)
 		app.UpdateInfo.Flag = true
 		app.BityuanFlag = false
 		return
 	}
-	log.Println("stderr:",serr.String())
+
 	//mv2 := exec.Command("mv",setting.BityuanSetting.Name+"_"+latestVersion+"/"+"bityuan.toml",".")
 	//err = mv2.Start()
 	//if err != nil {