code: public void addRecord(String key,
                            boolean b)
                            throws TarMalformatException, IOException {
          addRecord(key, Boolean.toString(b));
      }
docs: Convenience wrapper for addRecord(String, String).
  N.b. this writes values exactly as either "true" or "false".
  
  @see #addRecord(String, String)
  @see Boolean#toString(boolean)