Rollup merge of #31401 - frewsxcv:clarify-ascii, r=steveklabnik
Rollup merge of #31401 - frewsxcv:clarify-ascii, r=steveklabnik

Fixes https://github.com/rust-lang/rust/issues/31203

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