message: fix C header
diff: @@ -46,7 +46,7 @@ extern "C" {
  const codeunit* spend_path,
  size_t spend_path_len,
  const codeunit* output_path,
  - size_t output_path_len,
  + size_t output_path_len
  );
  /// Writes the "uncommitted" note value for empty leaves
  