add diag to VerbosityOption

src/dotnet/CommonOptions.cs

@@ -22,7 +22,8 @@ namespace Microsoft.DotNet.Cli
                           "q", "quiet",
                           "m", "minimal",
                           "n", "normal",
-                          "d", "detailed")
+                          "d", "detailed",
+                          "diag", "diagnostic")
                       .ForwardAs(o => $"/verbosity:{o.Arguments.Single()}"));
 
         public static ArgumentsRule DefaultToCurrentDirectory(this ArgumentsRule rule) =>

src/dotnet/commands/dotnet-publish/Program.cs

@@ -3,8 +3,10 @@
 
 using System.Collections.Generic;
 using Microsoft.DotNet.Cli;
+using Microsoft.DotNet.Cli.CommandLine;
 using Microsoft.DotNet.Cli.Utils;
 using Microsoft.DotNet.Tools.MSBuild;
+using Parser = Microsoft.DotNet.Cli.Parser;
 
 namespace Microsoft.DotNet.Tools.Publish
 {
@@ -25,6 +27,8 @@ namespace Microsoft.DotNet.Tools.Publish
 
             var result = parser.ParseFrom("dotnet publish", args);
 
+            Reporter.Output.WriteLine(result.Diagram());
+
             result.ShowHelpIfRequested();
 
             msbuildArgs.Add("/t:Publish");

src/dotnet/commands/dotnet-restore/Program.cs

@@ -29,10 +29,10 @@ namespace Microsoft.DotNet.Tools.Restore
 
             var result = parser.ParseFrom("dotnet restore", args);
 
-            result.ShowHelpIfRequested();
-
             Reporter.Output.WriteLine(result.Diagram());
 
+            result.ShowHelpIfRequested();
+
             var restore = result["dotnet"]["restore"];
 
             var msbuildArgs = new List<string>