@Nls
  private static String prepareText(String text) {
    final int LEN = EMPTY_STRING.length();
    String right;
    if (text == null) {
      right = EMPTY_STRING;
    }
    else if (text.length() == LEN) {
      right = text;
    }
    else if (text.length() < LEN) {
      right = text + EMPTY_STRING.substring(0, LEN - text.length());
    }
    else {
      right = "..." + text.substring(text.length() - LEN + 2);
    }
    return DiffBundle.message("label.dirdiff.loading.file", right);
  }
@Nls
  private static String prepareText(String text)