[libcxx-commits] [libcxx] [libc++][NFC] Run the container tests through clang-format (PR #126499)

[Louis Dionne via libcxx-commits]

ldionne wrote:

This is a mess to review, but I basically got this diff with `find libcxx/test/{libcxx,std}/containers -type f | xargs clang-format -i`. I also went through the whole diff to make sure there was nothing unreasonable.

https://github.com/llvm/llvm-project/pull/126499