[libcxx-commits] [libcxx] [libc++] Add a utility for checking the output of commands (PR #65917)

[Louis Dionne via libcxx-commits]

ldionne wrote:

In the interest of keeping the review queue small and relevant, I then suggest we close this PR as option (1) is investigated.

@philnik777 WDYT?

https://github.com/llvm/llvm-project/pull/65917