will result in a directory layout in the git tree of
branch/
branch/foo
branch/bar
p4 can do various other reordering that this change doesn't support,
but we should detect it and at least fail nicely.
Signed-off-by: Ian Wienand <ianw@vmware.com> Acked-by: Pete Wyckoff <pw@padd.com> Acked-by: Tor Arvid Lund <torarvid@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>