[clang] [clang-format] Add null-terminated path option (#123921) (PR #123926)

[Nikolaos Chatzikonstantinou via cfe-commits]

createyourpersonalaccount wrote:

> From #123921, it seems that you only want the new option to work with `--staged`, but should it also work with other options that may print a list of filenames?

I don't know; I only use `git clang-format` as in #123921 and I am not familiar with all its uses. I was hoping that you or someone other who is familiar could determine this.

https://github.com/llvm/llvm-project/pull/123926