message: fixed unused code warning
  In the commit one cfg attribute
  was forgotten. Here we fix this.
diff: @@ -464,7 +464,13 @@ mod imp {
  }
  }
  -#[cfg(any(all(unix, not(any(target_os = "linux", target_os = "macos"))), windows,))]
  +#[cfg(any(
  + all(
  + unix,
  + not(any(target_os = "linux", target_os = "macos", target_os = "freebsd"))
  + ),
  + windows,
  +))]
  fn default_err_erase_line(shell: &mut Shell) {
  if let Some(max_width) = imp::stderr_width() {
  let blank = " ".repeat(max_width);
  