@@ -227,7 +227,7 @@ fn run() -> Result<()> {
227227
228228 if app.matches.is_present("list-languages") {
229229 let mut languages = assets.syntax_set.syntaxes().to_owned();
230− languages.sort_by(|a, b| a.name.to_uppercase().cmp(&b.name.to_uppercase()));
230+ languages.sort_by_key(|lang| lang.name.to_uppercase());
231231
232232 let longest = languages
233233 .iter()