[libcxx-commits] [libcxxabi] [libc++abi] Use the same .clang-format as libc++ (PR #208661)

[Louis Dionne via libcxx-commits]

https://github.com/ldionne approved this pull request.

LGTM but let's add a comment to keep in sync with the one in libc++, and let's add the same comment in the libc++ clang-format file.

https://github.com/llvm/llvm-project/pull/208661