message: follow_me: fix casting for MSVC
diff: @@ -254,8 +254,8 @@ void FollowMeImpl::send_target_location()
  // LogDebug() << debug_str << "Lat: " << _target_location.latitude_deg << " Lon: " <<
  // _target_location.longitude_deg <<
  // " Alt: " << _target_location.absolute_altitude_m;
  - const int32_t lat_int = std::round(_target_location.latitude_deg * 1e7);
  - const int32_t lon_int = std::round(_target_location.longitude_deg * 1e7);
  + const int32_t lat_int = int32_t(std::round(_target_location.latitude_deg * 1e7));
  + const int32_t lon_int = int32_t(std::round(_target_location.longitude_deg * 1e7));
  const float alt = static_cast<float>(_target_location.absolute_altitude_m);
  _mutex.unlock();
  