message: remove extra semicolon.
diff: @@ -101,7 +101,6 @@ void Node4::Erase(ART &art, unique_ptr<Node> &node, int pos) {
  auto new_length = node->prefix_length + childref->prefix_length + 1;
  //! have to allocate space in our prefix array
  unique_ptr<uint8_t[]> new_prefix = unique_ptr<uint8_t[]>(new uint8_t[new_length]);
  - ;
  //! first move the existing prefix (if any)
  for (uint32_t i = 0; i < childref->prefix_length; i++) {
  