[clang-tools-extra] [clang-tidy]avoid bugprone-unused-return-value false positive for function with the same prefix as the default argument (PR #84333)

[Piotr Zegar via cfe-commits]

https://github.com/PiotrZSL approved this pull request.

LGTM, but I agree that documentation should be changed to put there configuration in format that it is in .cpp file.

https://github.com/llvm/llvm-project/pull/84333