message: elle.athena: avoid useless namespaces and uselessly long identifiers
diff: #include <elle/athena/paxos/Client.hh>
  -namespace elle
  +namespace
  {
  - namespace athena
  - {
  - namespace paxos
  - {
  - static const elle::serialization::Hierarchy<elle::Exception>::
  - Register<Unavailable> _register_serialization_unavailable;
  - static const elle::serialization::Hierarchy<elle::Exception>::
  - Register<TooFewPeers> _register_serialization;
  - }
  - }
  + template <typename T>
  + using register_t = elle::serialization::Hierarchy<elle::Exception>:: Register<T>;
  +
  + const auto r1 = register_t<elle::athena::paxos::Unavailable>{};
  + const auto r2 = register_t<elle::athena::paxos::TooFewPeers>{};
  }
  