code: protected void addHelpFileRedirect(String fieldName, Class<? extends Describable> owner, String fieldNameToRedirectTo) {
          helpRedirect.put(fieldName, new HelpRedirect(owner,fieldNameToRedirectTo));
      }
docs: Tells Jenkins that the help file for the field 'fieldName' is defined in the help file for
  the 'fieldNameToRedirectTo' in the 'owner' class.
  @since 1.425