message: Update missing `dotnet` sdk error message
  For:
diff: @@ -106,8 +106,8 @@ function showInstallErrorMessage(eventStream: EventStream) {
  function showDotnetToolsWarning(message: string): void {
  const config = vscode.workspace.getConfiguration('csharp');
  if (!config.get('suppressDotnetInstallWarning', false)) {
  - const getDotNetMessage = 'Get the .NET Core SDK';
  - const goToSettingsMessage = 'Disable this message in user settings';
  + const getDotNetMessage = 'Get the SDK';
  + const goToSettingsMessage = 'Disable message in settings';
  const helpMessage = 'Help';
  // Buttons are shown in right-to-left order, with a close button to the right of everything;
  // getDotNetMessage will be the first button, then goToSettingsMessage, then the close button.
  