xmlns:creativeCommons invalid namespace url warning

Checked document: http://feeds.rwpod.com/rwpod (RSS feed)

Warning:

line 3 
<http://validator.w3.org/appc/check.cgi?url=http://www.rwpod.com/rss.xml#l3>, 
column 0:The prefix "creativeCommons" generally is associated with the 
namespace "http://backend.userland.com/creativeCommonsRssModule"


Help info:

http://validator.w3.org/appc/docs/warning/ReservedPrefix.html
http://validator.w3.org/appc/docs/howto/declare_namespaces.html

But on site creativecommons (http://wiki.creativecommons.org/RSS_2.0) we 
can read this:

The module namespace URI was changed 
fromhttp://backend.userland.com/creativeCommonsRssModuletohttp://cyber.law.harvard.edu/rss/creativeCommonsRssModule.htmlin 
2003; consumers should be aware of this change.
<http://feeds.rwpod.com/rwpod>
I this this should be fixed in validator.

Thanks.