Self-Closing does not work for Empty Elements with Attributes

[arminfrey1]

I need to create elements that have attributes, but no value that are self-closing. The current code creates:

<cargo weight="19200" unit="kg">
</cargo>

but what I need is:

<cargo weight="19200" unit="kg"/>

I'm using Array2xml to create a soap message and the current result is not legal code. This would fix that issue.