code: @Override
    public void addEmptyTag(String tagName, String attrName, String attrValue)
    {
      _xml.addXML(_indent.toString());
      _xml.addEmptyTag(tagName, attrName, attrValue);
      _xml.addXML("\n");
    }
docs: Adds an empty tag which contains an attribute
  
  @param tagName the name of the empty tag to add
  @param attrName the name of the attribute
  @param attrValue the value of the attribute