Auto merge of #5312 - joshtriplett:wildcard-prelude-documentation, r=flip1995
Auto merge of #5312 - joshtriplett:wildcard-prelude-documentation, r=flip1995

Document that wildcard_imports doesn't warn about `use ...::prelude::*;`

changelog: Improve [`wildcard_imports`] documentation

graydon/rust,graydon/rust,aidancully/rust,aidancully/rust,graydon/rust,graydon/rust,aidancully/rust,graydon/rust,graydon/rust,aidancully/rust,aidancully/rust,aidancully/rust