[libc-commits] [libc] [libc] Implement killpg (PR #237561)

[Anshitha Yeruva via libc-commits]

anshithayeruva wrote:

Sorry, misunderstood! I'll open a separate PR to refactor the kill syscall wrapper first and then update this PR.

https://github.com/llvm/llvm-project/pull/237561