Rollup merge of #44158 - dtolnay:zero48, r=sfackler
Rollup merge of #44158 - dtolnay:zero48, r=sfackler

Use a byte literal ASCII 0 instead of its decimal value

@SimonSapin noticed this in https://github.com/dtolnay/itoa/pull/8.

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