[llvm] [Workflow] Expand code-format-helper.py error reporting (PR #69686)

[Ryan Prichard via llvm-commits]

rprichard wrote:

> LGTM, I assume this has been tested somehow right?

Unfortunately, it still needs to be tested somehow. I did notice that you had some way to demo it on https://github.com/tru/llvm-project/pull/8.



https://github.com/llvm/llvm-project/pull/69686