code: public void addSwitch(String option, String description) {
          optionList.add(option);
          optionDescriptionMap.put(option, description);
  
          if (option.length() > maxWidth) {
              maxWidth = option.length();
          }
      }
docs: Add a command line switch. This method is for adding options that do not
  require an argument.
  
  @param option
  the option, must start with "-"
  @param description
  single line description of the option