Update src/uucore/src/lib/mods/clap_localization.rs

Co-authored-by: Daniel Hofstetter <daniel.hofstetter@42dh.com>

Author: sylvestre

src/uucore/src/lib/mods/clap_localization.rs

@@ -153,8 +153,7 @@ impl<'a> ErrorFormatter<'a> {
 
             // Print main error
             eprintln!(
-                "{}: {}",
-                self.util_name,
+                "{}",
                 translate!(
                     "clap-error-unexpected-argument",
                     "arg" => self.color_mgr.colorize(&arg_str, Color::Yellow),