code: private static void endZoneProps(Writer writer, boolean isDst) throws IOException{
          // END:STANDARD or END:DAYLIGHT
          writer.write(ICAL_END);
          writer.write(COLON);
          if (isDst) {
              writer.write(ICAL_DAYLIGHT);
          } else {
              writer.write(ICAL_STANDARD);
          }
          writer.write(NEWLINE);
      }
docs: /*
  Writes the closing section of zone properties