Tests: clean up and document submodule helpers

diff --git a/diff-lib.c b/diff-lib.c
index 4e0980caa80fb980938f68c8d350ec00cc24398b..d2ea02f4d7c9074aff577d9529640315db9c5af7 100644 (file)
--- a/diff-lib.c
+++ b/diff-lib.c
@@ -36,7 +36,7 @@ static int check_removed(const struct cache_entry *ce, struct stat *st)
        if (has_symlink_leading_path(ce->name, ce_namelen(ce)))
                return 1;
        if (S_ISDIR(st->st_mode)) {
-               unsigned char sub[20];
+               struct object_id sub;
 
                /*
                 * If ce is already a gitlink, we can have a plain
@@ -50,7 +50,7 @@ static int check_removed(const struct cache_entry *ce, struct stat *st)
                 * a directory --- the blob was removed!
                 */
                if (!S_ISGITLINK(ce->ce_mode) &&
-                   resolve_gitlink_ref(ce->name, "HEAD", sub))
+                   resolve_gitlink_ref(ce->name, "HEAD", &sub))
                        return 1;
        }
        return 0;