Re: [PATCH] Explain "Not a git repository: '.git'".

I have three follow-up patches, two are probably Ok (but I'd
rather not apply them to 'master' now -rc1 cycle is on), and the
last one debatable.

  [PATCH 1/3] Define cd_to_toplevel shell function in git-sh-setup
  [PATCH 2/3] Use cd_to_toplevel in scripts that implement it by hand.
  [PATCH 3/3] Allow whole-tree operations to be started from a subdirectory