当获取log为空时，追加log打印

Vinno.FIS.Sonopost/Features/AfterSales/GetLogAfterSalesTask.cs

@@ -152,6 +152,7 @@ namespace Vinno.FIS.Sonopost.Features.AfterSales
                 }
                 else
                 {
+                    Logger.WriteLineError($"Upload Log Failed, because no log files found");
                     SendProcess(FISTaskStatus.Failed, FISDetailType.GetLogError, 0);
                 }
             }