git-fetch.sh

Otherwise, git-clone silently failed to clone a remote
repository where redirections (ie. a response with a
"Location" header line) are used.

This includes the fixes from Nick Hengeveld.

Signed-off-by: Josef Weidendorfer <Josef.Weidendorfer@gmx.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>