builtin/submodule--helper: factor out submodule updating

diff --git a/t/t5401-update-hooks.sh b/t/t5401-update-hooks.sh
index 7f278d8ce932f34420c337571ec043ffb5e318e9..b5f886a0e264eed3d3ab54176b01912bbb8badb6 100755 (executable)
--- a/t/t5401-update-hooks.sh
+++ b/t/t5401-update-hooks.sh
@@ -82,13 +82,13 @@ test_expect_success 'hooks ran' '
 '
 
 test_expect_success 'pre-receive hook input' '
-       (echo $commit0 $commit1 refs/heads/master;
+       (echo $commit0 $commit1 refs/heads/master &&
         echo $commit1 $commit0 refs/heads/tofail
        ) | test_cmp - victim.git/pre-receive.stdin
 '
 
 test_expect_success 'update hook arguments' '
-       (echo refs/heads/master $commit0 $commit1;
+       (echo refs/heads/master $commit0 $commit1 &&
         echo refs/heads/tofail $commit1 $commit0
        ) | test_cmp - victim.git/update.args
 '