Make curl follow redirections. wget already does.

Make curl follow redirections. wget already does.

BUG=chromium-os:10289
TEST=manual

Set up a local URL that redirects, try it out. For example:

  ./recovery.sh http://www/~scottz/recovery2.conf

should redirect to http://www.corp.google.com/~scottz/recovery2.conf

Change-Id: I0a60784f414d69b9e3371b9546666dcdc8978d25

Committed: http://chrome-svn/viewvc/chromeos?view=rev&revision=50a75da

[scottz, 2010-12-13 23:54:03]

LGTM