[compiler-rt] [compiler-rt][rtsan] intercept setbuf, setvbuf, setlinebuf and setbuffer (PR #121616)

[David CARLIER via llvm-commits]

devnexen wrote:

> @devnexen - I'd love to keep being added to these reviews alongside @davidtrevelyan :)
> 
> Thank you!!

I ll for next sorry :)

https://github.com/llvm/llvm-project/pull/121616