This is a patch making the search for the Location header on a 30X HTTP
response case insensitive, rather then case sensitive. I couldn't find
where the RFCs mandate the header should be capitalized, and sometimes
it isn't.
curl -v http://download.fedoraproject.org/pub/fedora/linux/ shows that
the response header has a lowercase "location" header which results in
anaconda giving a "got a redirect response but Location header is NULL"
http://kanarip.fedorapeople.org/NULL-Location-header.png
Verification with wget[1] confirms the lowercase header.
Cherry-picking commit 017eafa7aac8897ef2cd04cb3e1f85808651b7a0 from
remote git://git.kanarip.com/anaconda should apply cleanly to f9-branch,
f10-branch and master.