code: protected void writeListNumbers(final OutputStream result) throws IOException {
          result.write(RtfList.LIST_NUMBER);
          result.write(intToByteArray(listNumber));
      }
docs: Writes only the list number and list level number.
  
  @param result The <code>OutputStream</code> to write to
  @throws IOException On i/o errors.
  @since 2.1.3