Use the modern syntax of git-diff-files in t2002-checkout-cache-u.sh

diff --git a/t/t6029-merge-subtree.sh b/t/t6029-merge-subtree.sh
index 35d66e804416af7f773d9eebcacb310f0e788884..43f5459c35dd862b2b15b9883a4f2354a20e8e25 100755 (executable)
--- a/t/t6029-merge-subtree.sh
+++ b/t/t6029-merge-subtree.sh
@@ -25,7 +25,7 @@ test_expect_success 'subtree available and works like recursive' '
 
        git merge -s subtree side &&
        for i in mundo $s world; do echo $i; done >expect &&
-       diff -u expect hello
+       test_cmp expect hello
 
 '