[libc-commits] [libc] [llvm] Add sysexits.h header with BSD exit codes (total-18) (PR #126112)

[Joseph Huber via libc-commits]

https://github.com/jhuber6 requested changes to this pull request.

This doesn't seem to define the header, it just adds this file in the `lib/` directory? Look at how we handle the other headers in `include/`.

https://github.com/llvm/llvm-project/pull/126112