code: public Option getOption(String opt)
      {
          opt = Util.stripLeadingHyphens(opt);
  
          if (shortOpts.containsKey(opt))
          {
              return shortOpts.get(opt);
          }
  
          return longOpts.get(opt);
      }
docs: Retrieve the {@link Option} matching the long or short name specified.
  The leading hyphens in the name are ignored (up to 2).
  
  @param opt short or long name of the {@link Option}
  @return the option represented by opt