Also vendor in latest golang.org/x to attempt to fix issue with testing.
The latest tests were blowing up because of errors in the golang.org/x/sys
code. Updating the vendoring and switching the validate Checkout are being
done to make the tests pass.
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
Closes: #723
Approved by: TomSweeneyRedHat