org.linkedin.util-core/src/main/java/org/linkedin/util/xml/XMLIndent.java
@Override
  public void addEmptyTag(String tagName, String attrName, String attrValue)
  {
    _xml.addXML(_indent.toString());
    _xml.addEmptyTag(tagName, attrName, attrValue);
    _xml.addXML("\n");
  }
@Override
  public void addEmptyTag(String tagName, String attrName, String attrValue)
  {
    _xml.addXML(_indent.toString());
    _xml.addEmptyTag(tagName, attrName, attrValue);
    _xml.addXML("\n");
  }
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