log_ref_setup(): improve robustness against races

diff --git a/t/t4011-diff-symlink.sh b/t/t4011-diff-symlink.sh
index 7452fce0da94a257f289a9fad1e9d24dd1509195..13e7f621ab79f95cc7c3057d9de5710813049102 100755 (executable)
--- a/t/t4011-diff-symlink.sh
+++ b/t/t4011-diff-symlink.sh
@@ -139,13 +139,11 @@ test_expect_success SYMLINKS 'setup symlinks with attributes' '
 test_expect_success SYMLINKS 'symlinks do not respect userdiff config by path' '
        cat >expect <<-\EOF &&
        diff --git a/file.bin b/file.bin
-       new file mode 100644
-       index 0000000..d95f3ad
-       Binary files /dev/null and b/file.bin differ
+       index e69de29..d95f3ad 100644
+       Binary files a/file.bin and b/file.bin differ
        diff --git a/link.bin b/link.bin
-       new file mode 120000
-       index 0000000..dce41ec
-       --- /dev/null
+       index e69de29..dce41ec 120000
+       --- a/link.bin
        +++ b/link.bin
        @@ -0,0 +1 @@
        +file.bin