[llvm] [llvm] Ensure newline at the end of files (NFC) (PR #143061)

[Aiden Grossman via llvm-commits]

boomanaiden154 wrote:

> I am not aware of one actually although the vast majority of source files have newlines at EOF.

Yeah. I've seen reviewer comments about it in the past too. It might be worth putting something somewhere just so that it's official.

> Github marks it as an error if it's missing so it should be there

As an error? I thought it just reported it similar to `git` and let you proceed either way.

https://github.com/llvm/llvm-project/pull/143061