message: Ensure there's a trailing path separator on upgrade command path
diff: @@ -241,6 +241,9 @@ struct UpgradeCommand : public Command
  {
  wstring wide_path = conv(parser.get<string>("path"));
  + if(wide_path.back() != '\\' && wide_path.back() != '/')
  + wide_path += L'\\';
  +
  // Wait for UI to exit
  Sleep(3000);
  