Format with clang-format
diff --git a/demo-cxx/demo.cc b/demo-cxx/demo.cc
index 387c56a..0274ff1 100644
--- a/demo-cxx/demo.cc
+++ b/demo-cxx/demo.cc
@@ -24,7 +24,7 @@
   return vec;
 }
 
-JsonBlob get_jb(const ::rust::Vec<uint8_t>& vec) {
+JsonBlob get_jb(const ::rust::Vec<uint8_t> &vec) {
   JsonBlob retval;
 
   std::cout << "incoming vec length is " << vec.size() << "\n";