patch-t_t5310-pack-bitmaps_sh

$OpenBSD: patch-t_t5310-pack-bitmaps_sh,v 1.1 2018/07/06 20:15:42 kn Exp $

Index: t/t5310-pack-bitmaps.sh
--- t/t5310-pack-bitmaps.sh.orig
+++ t/t5310-pack-bitmaps.sh
@@ -337,7 +337,7 @@ test_expect_success 'truncated bitmap fails gracefully
 	git rev-list --use-bitmap-index --count --all >expect &&
 	bitmap=$(ls .git/objects/pack/*.bitmap) &&
 	test_when_finished "rm -f $bitmap" &&
-	head -c 512 <$bitmap >$bitmap.tmp &&
+	dd bs=512 count=1 if=$bitmap of=$bitmap.tmp &&
 	mv -f $bitmap.tmp $bitmap &&
 	git rev-list --use-bitmap-index --count --all >actual 2>stderr &&
 	test_cmp expect actual &&