t: add missing executable bit to t7409

Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>

Jeff King committed Jul 28, 2012 at 11:18 UTC 07a71b851a2910931d307c884195d130f3462962
1 file changed
t/t7409-submodule-detached-worktree.sh