code: public String getDisplayName(Locale locale) {
  
          if (getParentFqn() == null) {
              // for the root ou
              return getDescription(locale);
          }
          return Messages.get().getBundle(locale).key(
              Messages.GUI_ORGUNIT_DISPLAY_NAME_2,
              getDescription(locale),
              CmsOrganizationalUnit.SEPARATOR + getName());
      }
docs: Returns the display name for this organizational unit.<p>
  
  @param locale the locale
  
  @return the display name for this organizational unit