Comment 2 for bug 171588

This file is valid. The only problem with it is that it
relies on en external DTD to declare the XLink namespace,
which in my opinion is pretty stupid - basically it makes
the file not loadable without internet access! However,
again, it's valid and allowed by XML rules. We have a bug on
that:

http://sourceforge.net/tracker/index.php?func=detail&aid=1042161&group_id=93438&atid=604306

It's low priority, but feel free to raise the issue on the
mailing list if you absolutely want this fixed.

For now. to fix this file, you just need to add to the
opening SVG tag:

xmlns:xlink="http://www.w3.org/1999/xlink"

and it will load OK.