message: elle.serialization.tests: Remove debug print.
diff: @@ -619,7 +619,6 @@ chrono_check(std::chrono::duration<Repr, Ratio> const& d)
  typename Format::SerializerOut output(stream);
  output.serialize("duration", d);
  }
  - std::cerr << stream.str() << std::endl;
  {
  std::chrono::duration<Repr, Ratio> res;
  typename Format::SerializerIn input(stream);
  