Replace tabs in err messages before rendering

This is done in other call sites, but was missing in one place.

Fixes #83638

compiler/rustc_errors/src/emitter.rs

@@ -1258,7 +1258,7 @@ impl EmitterWriter {
                 buffer.append(0, ": ", header_style);
             }
             for &(ref text, _) in msg.iter() {
-                buffer.append(0, text, header_style);
+                buffer.append(0, &replace_tabs(text), header_style);
             }
         }