diff: add an internal option to dual-color diffs of diffs

diff --git a/builtin/range-diff.c b/builtin/range-diff.c
index f0598005aece52c84b7b18fdd432f9d205a3aac5..76659d0b3f0385518aebc71500addc7124765d5e 100644 (file)
--- a/builtin/range-diff.c
+++ b/builtin/range-diff.c
@@ -33,6 +33,7 @@ int cmd_range_diff(int argc, const char **argv, const char *prefix)
 
        diff_setup(&diffopt);
        diffopt.output_format = DIFF_FORMAT_PATCH;
+       diffopt.flags.suppress_diff_headers = 1;
        diffopt.output_prefix = output_prefix_cb;
        strbuf_addstr(&four_spaces, "    ");
        diffopt.output_prefix_data = &four_spaces;