Add a test script for all archive attributes and their handling in
normal and bare repositories. export-ignore and export-subst are
tested, as well as the effect of the option --worktree-attributes.
Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
