git index-pack --verify "test-2-${pack2}.pack"
'
+test_expect_success \
+ 'pack-objects --index-version=2, is not accepted' \
+ 'test_must_fail git pack-objects --index-version=2, test-3 <obj-list'
+
test_expect_success \
'index v2: force some 64-bit offsets with pack-objects' \
'pack3=$(git pack-objects --index-version=2,0x40000 test-3 <obj-list)'