add update 'none' flag to disable update of submodule by default

diff --git a/grep.h b/grep.h
index 638bee848d4fc36edb80e57fd8b8b550dc2c6e72..c5682973eaf696099b0d0367e21df6c0a4624836 100644 (file)
--- a/grep.h
+++ b/grep.h
@@ -111,6 +111,7 @@ struct grep_opt {
        unsigned last_shown;
        int show_hunk_mark;
        int file_break;
+       int heading;
        void *priv;
 
        void (*output)(struct grep_opt *opt, const void *data, size_t size);