ftp proxies and redirects

[Ted Unangst]

I believe there's a bug with ftp and redirects when using a proxy. ftp seems
to add the redirect URL to the proxy host, fetching http://proxy/new-url
instead of http://orighost/new-url. I'm not certain this isn't a server or
proxy bug, in part because I'm not certain who's supposed to say what or how
it's interpreted, but my first guess is to blame ftp. :) In the same setup,
chrome redirects to http://orighost/new-url.