t9101: use "git hash-object" without dash

diff --git a/t/t6027-merge-binary.sh b/t/t6027-merge-binary.sh
index 92ca1f0f8ccabe6f01159ea3e4a73683387ec4a3..b519626ca09255a433b0d1cb32780a6feafa09f6 100755 (executable)
--- a/t/t6027-merge-binary.sh
+++ b/t/t6027-merge-binary.sh
@@ -6,7 +6,7 @@ test_description='ask merge-recursive to merge binary files'
 
 test_expect_success setup '
 
-       cat ../test4012.png >m &&
+       cat "$TEST_DIRECTORY"/test4012.png >m &&
        git add m &&
        git ls-files -s | sed -e "s/ 0  / 1     /" >E1 &&
        test_tick &&