[clang-tools-extra] [clang-tidy] Fix `cert-err33-c` to ignore functions with same prefixes as target (PR #135160)

[Björn Svensson via cfe-commits]

bjosv wrote:

> I think we should provide an entry in `ReleaseNotes.rst` since the change alters behavior of the check (fixes false-positives).

Missed that, thanks. Done.

https://github.com/llvm/llvm-project/pull/135160