message: Updated changelog phrasing.
diff: ## 1.20.0 (Not yet released)
  * Updated the auto-generated launch.json to use new mechanism for starting web browser. For more information: https://aka.ms/VSCode-CS-LaunchJson-WebBrowser
  -* Fadeout support [#2873](https://github.com/OmniSharp/omnisharp-vscode/pull/2873)
  +* Added support for fading unnecessary code and using statements [#2873](https://github.com/OmniSharp/omnisharp-vscode/pull/2873)
  ## 1.19.1 (May 6, 2019)
  