unpack-trees.c: look ahead in the index

diff --git a/builtin-commit-tree.c b/builtin-commit-tree.c
index 64670777312c71d45b10f72a1efe9fceae3e3b89..ddcb7a4bbbcd45dfd7437209f3187fff882e6e62 100644 (file)
--- a/builtin-commit-tree.c
+++ b/builtin-commit-tree.c
@@ -105,7 +105,7 @@ int cmd_commit_tree(int argc, const char **argv, const char *prefix)
 
        git_config(git_default_config, NULL);
 
-       if (argc < 2)
+       if (argc < 2 || !strcmp(argv[1], "-h"))
                usage(commit_tree_usage);
        if (get_sha1(argv[1], tree_sha1))
                die("Not a valid object name %s", argv[1]);