diff- and log- family: handle "git cmd -h" early

diff --git a/builtin/diff-tree.c b/builtin/diff-tree.c
index 326f88b6576d6c02e9a0bcecb5a0b402bb257372..773cc254b5909713b2838db4ba52e7b6f9e88e60 100644 (file)
--- a/builtin/diff-tree.c
+++ b/builtin/diff-tree.c
@@ -105,6 +105,9 @@ int cmd_diff_tree(int argc, const char **argv, const char *prefix)
        struct setup_revision_opt s_r_opt;
        int read_stdin = 0;
 
+       if (argc == 2 && !strcmp(argv[1], "-h"))
+               usage(diff_tree_usage);
+
        init_revisions(opt, prefix);
        gitmodules_config();
        git_config(git_diff_basic_config, NULL); /* no "diff" UI options */