ReleaseNote: Mention SpecialCaseList change

[MaskRay]

No description provided.

[tstellar]

Is this a change from LLVM 17 to LLVM 18 or from LLVM 18.0.3 to 18.0.4 ?

[pogo59]

@tstellar The PR was committed in December, so this is a change from LLVM17 to LLVM18. It is a behavior change that is tripping up some people, and I asked @MaskRay for a release note.

If it's too late for that, I can propagate his release note to our downstream release.

[ellishg]

Should we add a link to the docs?

https://clang.llvm.org/docs/SanitizerSpecialCaseList.html#format

[MaskRay]

Should we add a link to the docs?

clang.llvm.org/docs/SanitizerSpecialCaseList.html#format

Thanks for the suggestion. Added