zhaixiaojuan opened a new pull request, #2346:
URL: https://github.com/apache/brpc/pull/2346
### What problem does this PR solve?
Issue Number: #2345
Problem Summary:
由于iobuf_unittest.cpp文件中append_store_append_cut测试用例删除/dev/null，导致在for循环中在执行open时重新创建了一个文件类型的/dev/null，从而引发系统问题
### What is changed and the side effects?
Changed: 当检测到是/dev/null, 不对其进行删除
Side effects:
- Performance effects(性能影响):
无
- Breaking backward compatibility(向后兼容性):
无
---
### Check List:
- Please make sure your changes are compilable(请确保你的更改可以通过编译).
- When providing us with a new feature, it is best to add related
tests(如果你向我们增加一个新的功能, 请添加相关测试).
- Please follow [Contributor Covenant Code of
Conduct](../../master/CODE_OF_CONDUCT.md).(请遵循贡献者准则).
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