fix encoding

tools/tars2case/tars2case.cpp

@@ -1,4 +1,4 @@
-/**
+/**
  * Tencent is pleased to support the open source community by making Tars available.
  *
  * Copyright (C) 2016THL A29 Limited, a Tencent company. All rights reserved.

tools/tars2case/tars2case.h

@@ -1,4 +1,4 @@
-/**
+/**
  * Tencent is pleased to support the open source community by making Tars available.
  *
  * Copyright (C) 2016THL A29 Limited, a Tencent company. All rights reserved.