In read_midx_preferred_pack(), we open the bitmap index but never free
it. This isn't a big deal since this is just a test helper, and we exit
immediately after, but since we're trying to keep our leak-checking tidy
now, it's worth fixing.
Signed-off-by: Jeff King <peff@peff.net>
Acked-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>