Auto merge of #31931 - Luke-Nukem:master, r=steveklabnik
Auto merge of #31931 - Luke-Nukem:master, r=steveklabnik

 Refinement of paragraph referenced by [this issue](https://github.com/rust-lang/rust/issues/31927).

The paragraph in question had been adjusted already, but I've made some further clarifications which should help with readability and not leave the reader any `dangling pointers`.

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