Fix t1400-update-ref test minimally

It depended on specific error messages to detect failure but the
implementation changed and broke the test.  This fixes the breakage
minimally.

Signed-off-by: Junio C Hamano <junkio@cox.net>

diff --git a/t/t1400-update-ref.sh b/t/t1400-update-ref.sh
index b3b920e..6a917f2 100755 (executable)
--- a/t/t1400-update-ref.sh
+++ b/t/t1400-update-ref.sh
@@ -30,11 +30,8 @@ rm -f .git/$m
 test_expect_success \
        "fail to create $n" \
        "touch .git/$n_dir
-        git-update-ref $n $A >out 2>err
-        test "'$? = 1 &&
-        test "" = "$(cat out)" &&
-        grep "error: unable to resolve reference" err &&
-        grep '"$n err"
+        git-update-ref $n $A >out 2>err"'
+        test $? != 0'
 rm -f .git/$n_dir out err
 
 test_expect_success \