Now all the users of this script detect its exit status and die,
complaining that it is outside git repository. So move the code
that dies from all callers to git-sh-setup script.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Because we use "lost-found" as the directory name to hold
dangling object names, it is confusing to call the command
git-lost+found, although it makes sense and is even cute ;-).
Signed-off-by: Junio C Hamano <junkio@cox.net>