[libc-commits] [libc] [libc][NFC] Small `abs` related simplifications (PR #79858)

[Nick Desaulniers via libc-commits]

nickdesaulniers wrote:

> > don't forget to land this
> 
> Can't other people merge PRs on the author's behalf?

Yes; I was hesitant in case there was a reason this hasn't been merged. There might not be, but just in case my personal preference is to defer to the patch author (when they have merge access).  I also prefer to leave the dopamine hit for clicking merge to the author of the work.  But if other people feel differently, I don't feel strongly about it either way.

https://github.com/llvm/llvm-project/pull/79858