[Lldb-commits] [lldb] [lldb-dap] Silence Wunused-result warning (PR #126580)

[Keith Smiley via lldb-commits]

keith wrote:

```
lldb/tools/lldb-dap/OutputRedirector.cpp:89:5: error: ignoring return value of function declared with 'warn_unused_result' attribute [-Werror,-Wunused-result]
   89 |     ::write(fd, buf, sizeof(buf));
      |     ^~~~~~~ ~~~~~~~~~~~~~~~~~~~~
1 error generated.
```

https://github.com/llvm/llvm-project/pull/126580