test_cmp: do not use "diff -u" on platforms that lack one

diff --git a/refs.c b/refs.c
index 0f24c8d5d9fa897c0b72c529c9fd2ccbcc7bd4d9..a7ad3fd8fa4f9f57776ba933f6976af661cb17e7 100644 (file)
--- a/refs.c
+++ b/refs.c
@@ -314,7 +314,11 @@ static int warn_if_dangling_symref(const char *refname, const unsigned char *sha
 
 void warn_dangling_symref(FILE *fp, const char *msg_fmt, const char *refname)
 {
-       struct warn_if_dangling_data data = { fp, refname, msg_fmt };
+       struct warn_if_dangling_data data;
+
+       data.fp = fp;
+       data.refname = refname;
+       data.msg_fmt = msg_fmt;
        for_each_rawref(warn_if_dangling_symref, &data);
 }
 
@@ -1276,6 +1280,7 @@ static int log_ref_write(const char *ref_name, const unsigned char *old_sha1,
        if (log_all_ref_updates &&
            (!prefixcmp(ref_name, "refs/heads/") ||
             !prefixcmp(ref_name, "refs/remotes/") ||
+            !prefixcmp(ref_name, "refs/notes/") ||
             !strcmp(ref_name, "HEAD"))) {
                if (safe_create_leading_directories(log_file) < 0)
                        return error("unable to create directory for %s",