formatEmptyElements
Formats empty XML elements according to the specified style (self-closing <br/> or expanded <br></br>). See Chapter 22.
xml(required): XML stringstyle(optional): "self-closing" or "expanded"
utlx
{
selfClosing: formatEmptyElements($input.xml, "self-closing"),
expanded: formatEmptyElements($input.xml, "expanded")
}