[xml/sgml-pkgs] Bug#679867: libxml2: failed to load external entity due to HTTP/1.1 301 Moved Permanently

[YunQiang Su]

It is not the problem of 301, it is due to https, which xmlint doesn't support.

And, I don't think xmllint should support https, it will take ssh or
gnutls as it's depends.

-- 
YunQiang Su