[clang-tools-extra] [clang-tidy] Export fixes from check_clang_tidy.py (PR #88186)

[Piotr Zegar via cfe-commits]

https://github.com/PiotrZSL requested changes to this pull request.

Rename this from -export to -export-fixes, because that's what it is, and could land.

https://github.com/llvm/llvm-project/pull/88186