Add 'human' date format documentation

diff --git a/t/t1400-update-ref.sh b/t/t1400-update-ref.sh
index 3996109ba48b5ce81e71ff4d90cb05486477f31b..e1fd0f0ca8b5d731d79ccca1d6e6140683a3665f 100755 (executable)
--- a/t/t1400-update-ref.sh
+++ b/t/t1400-update-ref.sh
@@ -6,7 +6,7 @@
 test_description='Test git update-ref and basic ref logging'
 . ./test-lib.sh
 
-Z=$_z40
+Z=$ZERO_OID
 
 m=refs/heads/master
 n_dir=refs/heads/gu
@@ -503,12 +503,12 @@ test_expect_success 'delete pseudoref with correct old value' '
        test_path_is_missing .git/PSEUDOREF
 '
 
-test_expect_failure 'create pseudoref with old OID zero' '
+test_expect_success 'create pseudoref with old OID zero' '
        git update-ref PSEUDOREF $A $Z &&
        test $A = $(cat .git/PSEUDOREF)
 '
 
-test_expect_failure 'do not overwrite pseudoref with old OID zero' '
+test_expect_success 'do not overwrite pseudoref with old OID zero' '
        test_when_finished git update-ref -d PSEUDOREF &&
        test_must_fail git update-ref PSEUDOREF $B $Z 2>err &&
        test $A = $(cat .git/PSEUDOREF) &&