Trim custom comment prefixes from code block without closing backticks
Trim custom comment prefixes from code block without closing backticks

aidancully/rust,graydon/rust,graydon/rust,aidancully/rust,rust-lang/rustfmt,SingingTree/rustfmt,graydon/rust,SingingTree/rustfmt,aidancully/rust,aidancully/rust,aidancully/rust,graydon/rust,aidancully/rust,graydon/rust,graydon/rust,rust-lang/rustfmt