message: Use known types instead of variadic template
diff: @@ -55,10 +55,9 @@ public:
  static constexpr size_t num_queues = sizeof...(Qs) + 1;
  - template <class... Ps>
  - wdrr_fixed_multiplexed_queue(policy_type p0,
  - typename Q::policy_type p1, Ps... ps)
  - : qs_(std::move(p1), std::forward<Ps>(ps)...),
  + wdrr_fixed_multiplexed_queue(policy_type p0, typename Q::policy_type p1,
  + typename Qs::policy_type... ps)
  + : qs_(std::move(p1), std::move(ps)...),
  policy_(std::move(p0)) {
  // nop
  }
  