tests: implicitly skip SYMLINKS tests using <prereq>

diff --git a/t/t4127-apply-same-fn.sh b/t/t4127-apply-same-fn.sh
index 3a8202ea9311b1c90158ad0d115dda985060fdeb..77200c0b2d969d621623f3be8621a3f9925d50a5 100755 (executable)
--- a/t/t4127-apply-same-fn.sh
+++ b/t/t4127-apply-same-fn.sh
@@ -27,7 +27,7 @@ test_expect_success 'apply same filename with independent changes' '
        cp same_fn same_fn2 &&
        git reset --hard &&
        git apply patch0 &&
-       diff same_fn same_fn2
+       test_cmp same_fn same_fn2
 '
 
 test_expect_success 'apply same filename with overlapping changes' '
@@ -40,7 +40,7 @@ test_expect_success 'apply same filename with overlapping changes' '
        cp same_fn same_fn2 &&
        git reset --hard &&
        git apply patch0 &&
-       diff same_fn same_fn2
+       test_cmp same_fn same_fn2
 '
 
 test_expect_success 'apply same new filename after rename' '
@@ -54,7 +54,7 @@ test_expect_success 'apply same new filename after rename' '
        cp new_fn new_fn2 &&
        git reset --hard &&
        git apply --index patch1 &&
-       diff new_fn new_fn2
+       test_cmp new_fn new_fn2
 '
 
 test_expect_success 'apply same old filename after rename -- should fail.' '