ident: don't write fallback username into git_default_name

diff --git a/diff.h b/diff.h
index 870dc91db8fa1ff23c60135ebfc42106f4c0464e..e027650cb0ff2651e2e890e7f00753c15f5b3cff 100644 (file)
--- a/diff.h
+++ b/diff.h
@@ -152,6 +152,7 @@ struct diff_options {
        diff_format_fn_t format_callback;
        void *format_callback_data;
        diff_prefix_fn_t output_prefix;
+       int output_prefix_length;
        void *output_prefix_data;
 };