message: Forgot the format.
diff: @@ -198,7 +198,9 @@ impl<'a, 'b> Completer for IonFileCompleter<'a, 'b> {
  let completions = filename_completion(&expanded, &self.path);
  if expanded == start {
  return if self.for_command {
  - completions.map(|s| s.rsplit('/').next().map(|s| s.to_string()).unwrap_or(s)).collect()
  + completions
  + .map(|s| s.rsplit('/').next().map(|s| s.to_string()).unwrap_or(s))
  + .collect()
  } else {
  completions.collect()
  };
  