[TYPO3-core] RFC: Bug #9217: typo3ajax::renderAsXML does not always render XML

[Francois Suter]

> Check the response content for XML validity. If it's not valid XML, it 
> means it's an array and t3lib_div::array2xml is called as a substitute 
> to produce a valid XML response.

Added one more comment line to the code for cleanliness.

Cheers

-- 

Francois Suter
Cobweb Development Sarl - http://www.cobweb.ch