message: Contour: super-minor refactor
diff: @@ -94,7 +94,7 @@ Contour::Contour(string _programPath, Config const& _config) :
  bind(&Contour::onScreenUpdate, this),
  bind(&Contour::onWindowTitleChanged, this),
  bind(&Contour::doResize, this, _1, _2, _3),
  - bind(&LoggingSink::log, &logger_, _1)
  + ref(logger_)
  },
  configFileChangeWatcher_{
  _config.backingFilePath,
  