message: Bump kOptionsVersion to bust the cache
diff: @@ -596,7 +596,7 @@ class RewriteOptions {
  // This version number should be incremented if any default-values
  // are changed, either in an Add*Property() call or via
  // options->set_default.
  - static constexpr int kOptionsVersion = 14;
  + static constexpr int kOptionsVersion = 15;
  // Number of bytes used for signature hashing.
  static constexpr int kHashBytes = 20;
  