code: public OPTRecord
  getOPT() {
  	Record [] additional = getSectionArray(Section.ADDITIONAL);
  	for (int i = 0; i < additional.length; i++)
  		if (additional[i] instanceof OPTRecord)
  			return (OPTRecord) additional[i];
  	return null;
  }
docs: Returns the OPT record from the ADDITIONAL section, if one is present.
  @see OPTRecord
  @see Section