CR feedback

- Added license to file
- Removed extra space

src/Microsoft.AspNetCore.Hosting/Internal/HostedServiceExecutor.cs

@@ -1,4 +1,7 @@
-using System;
+// Copyright (c) .NET Foundation. All rights reserved.
+// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
+
+using System;
 using System.Collections.Generic;
 using Microsoft.Extensions.Logging;
 

test/Microsoft.AspNetCore.Hosting.Tests/WebHostTests.cs

@@ -364,7 +364,6 @@ namespace Microsoft.AspNetCore.Hosting
             var lifetime = host.Services.GetRequiredService<IApplicationLifetime>();
             lifetime.StopApplication();
 
-
             host.Start();
             var svc = (TestHostedService)host.Services.GetRequiredService<IHostedService>();
             Assert.True(svc.StartCalled);