[libcxx-commits] [libcxx] [libc++] Fix issue with running transitive includes tests on Docker-in-Docker (PR #110554)

[via libcxx-commits]

EricWF wrote:

So I don't think the diff tool is at fault here, because using `/usr/bin/diff` fails as well.

On my local machine, I reproduced the issue by creating a `/__w/foo/llvm-project` directory and building using that.
I suspect  there's something wrong with our escaping or regular expressions.


https://github.com/llvm/llvm-project/pull/110554