code: private OptionHandler findOptionByName(String name) {
  		for (OptionHandler h : options) {
  			NamedOptionDef option = (NamedOptionDef)h.option;
  			if (name.equals(option.name())) {
  				return h;
  			}
  			for (String alias : option.aliases()) {
  				if (name.equals(alias)) {
  					return h;
  				}
  			}
  		}
  		return null;
  	}
docs: Finds a registered {@code OptionHandler} by its name or its alias.
  @param name name
  @return the {@code OptionHandler} or {@code null}