fix stylecop issues

src/csharp/Grpc.Core/ChannelOptions.cs

@@ -162,7 +162,6 @@ namespace Grpc.Core
                     {
                         throw new InvalidOperationException("Unknown option type");
                     }
-
                 }
                 return nativeArgs;
             }

src/csharp/Grpc.IntegrationTesting/InteropClient.cs

@@ -113,7 +113,8 @@ namespace Grpc.IntegrationTesting
             List<ChannelOption> channelOptions = null;
             if (!string.IsNullOrEmpty(options.serverHostOverride))
             {
-                channelOptions = new List<ChannelOption> {
+                channelOptions = new List<ChannelOption>
+                {
                     new ChannelOption(ChannelOptions.SslTargetNameOverride, options.serverHostOverride)
                 };
             }

src/csharp/Grpc.IntegrationTesting/InteropClientServerTest.cs

@@ -62,7 +62,8 @@ namespace Grpc.IntegrationTesting
             int port = server.AddListeningPort(host, Server.PickUnusedPort, TestCredentials.CreateTestServerCredentials());
             server.Start();
 
-            var options = new List<ChannelOption> {
+            var options = new List<ChannelOption>
+            {
                 new ChannelOption(ChannelOptions.SslTargetNameOverride, TestCredentials.DefaultHostOverride)
             };
             channel = new Channel(host, port, TestCredentials.CreateTestClientCredentials(true), options);