[clang-tools-extra] Add bugprone-undefined-sprintf-overlap (PR #114244)

[Nicolas van Kempen via cfe-commits]

https://github.com/nicovank commented:

I have questions regarding the motivation behind adding this check:
 1. How common is this bug?
 2. What happens in practice at runtime?
 3. What are existing ways of detecting this, if any?

https://github.com/llvm/llvm-project/pull/114244