Merge branch 'rs/rebase-checkout-not-so-quiet'

* rs/rebase-checkout-not-so-quiet:
  git-rebase: report checkout failure

Conflicts:
	git-rebase.sh

diff --cc git-rebase.sh
index 56cf6f0316ddd000221ecaf343f7fc58c8636590,7825f88952490705fa5272724c92cccff057cc12..6ef5754814babdb908d794ea030aceca6597b190
--- 1/git-rebase.sh
--- 2/git-rebase.sh
+++ b/git-rebase.sh
@@@ -376,9 -376,7 +376,8 @@@ f
  
  # Detach HEAD and reset the tree
  echo "First, rewinding head to replay your work on top of it..."
- git checkout "$onto^0" >/dev/null 2>&1 ||
-       die "could not detach HEAD"
+ git checkout -q "$onto^0" || die "could not detach HEAD"
 +git update-ref ORIG_HEAD $branch
  
  # If the $onto is a proper descendant of the tip of the branch, then
  # we just fast forwarded.