[llvm] [RFC][Docs] Clarify brace omission for single-line bodies (PR #195985)

[Jay Foad via llvm-commits]

jayfoad wrote:

> It's not obvious to me why reviewers are weighed more heavily.

I agree that that _should_ not necessarily be the case. But you often get situations where an author will make any change requested by a reviewer just in the hope of getting an approval, which de facto gives the reviewer's preferences more weight. This is not a good end result but I don't know what to do about it.

https://github.com/llvm/llvm-project/pull/195985