Simpletest failing when redirecting to example.com

Hi,

There is a failing simpletest:

Redirected from http://www.iana.org/domains/example/ to http://www.iana.org/domains/example/, expected http://example.com/.

This appears to be because http://example.com is now redirecting to http://www.iana.org/domains/example/.

Updating the simpletest to use http://www.iana.org/domains/example/ instead.