message: Default maximumElasticWorkerCount to 20
diff: @@ -35,11 +35,13 @@ export class AppServicePlanCreateStep extends AzureWizardExecuteStep<IAppService
  } else {
  ext.outputChannel.appendLog(creatingAppServicePlan);
  progress.report({ message: creatingAppServicePlan });
  + const isElasticPremium: boolean = wizardContext.newPlanSku?.family?.toLowerCase() === 'ep';
  wizardContext.plan = await client.appServicePlans.createOrUpdate(rgName, newPlanName, {
  kind: getAppServicePlanModelKind(wizardContext.newSiteKind, nonNullProp(wizardContext, 'newSiteOS')),
  sku: nonNullProp(wizardContext, 'newPlanSku'),
  location: nonNullValueAndProp(wizardContext.location, 'name'),
  - reserved: wizardContext.newSiteOS === WebsiteOS.linux // The secret property - must be set to true to make it a Linux plan. Confirmed by the team who owns this API.
  + reserved: wizardContext.newSiteOS === WebsiteOS.linux, // The secret property - must be set to true to make it a Linux plan. Confirmed by the team who owns this API.
  + maximumElasticWorkerCount: isElasticPremium ? 20 : undefined
  });
  ext.outputChannel.appendLog(createdAppServicePlan);
  }
  