RSS feed is exposing internal XML namespaces

https://typo3.org/?type=101

<rss xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:atom="http://www.w3.org/2005/Atom" xmlns:f="http://typo3.org/ns/TYPO3/CMS/Fluid/ViewHelpers" xmlns:n="http://typo3.org/ns/GeorgRinger/News/ViewHelpers" version="2.0">

xmlns:f and xmlns:n are only required internally for rendering
those should be omitted for actual RSS feed output