message: fixed warnings in 32 bits
diff: @@ -1345,7 +1345,7 @@ namespace libtorrent {
  void set_file_priorities(std::vector<std::int8_t> const& file_priorities) {
  std::vector<std::uint8_t> v(file_priorities.size());
  - for (int i = 0; i < v.size(); i++)
  + for (std::size_t i = 0; i < v.size(); i++)
  v[i] = std::uint8_t(file_priorities[i]);
  $self->file_priorities = v;
  }
  @@ -1380,7 +1380,7 @@ namespace libtorrent {
  void set_piece_priorities(std::vector<std::int8_t> const& piece_priorities) {
  std::vector<std::uint8_t> v(piece_priorities.size());
  - for (int i = 0; i < v.size(); i++)
  + for (std::size_t i = 0; i < v.size(); i++)
  v[i] = std::uint8_t(piece_priorities[i]);
  $self->piece_priorities = v;
  }
  