Auto merge of #115513 - Urgau:normalize-msg-after-translate, r=petrochenkov

Don't forget to normalize the translated message

This PR adds a missing call to `normalize_whitespace` after translating an label.

Fixes https://github.com/rust-lang/rust/issues/115498

compiler/rustc_errors/src/emitter.rs

@@ -2348,7 +2348,13 @@ impl FileWithAnnotatedLines {
                 }
 
                 let label = label.as_ref().map(|m| {
-                    emitter.translate_message(m, args).map_err(Report::new).unwrap().to_string()
+                    normalize_whitespace(
+                        &emitter
+                            .translate_message(m, &args)
+                            .map_err(Report::new)
+                            .unwrap()
+                            .to_string(),
+                    )
                 });
 
                 if lo.line != hi.line {