Show help - via a dialog box and not a flickering command line

ILSpy/App.xaml.cs

@@ -87,6 +87,11 @@ namespace ICSharpCode.ILSpy
 											  Hyperlink.RequestNavigateEvent,
 											  new RequestNavigateEventHandler(Window_RequestNavigate));
 			ILSpyTraceListener.Install();
+
+			if (App.CommandLineArguments.ArgumentsParser.IsShowingInformation)
+			{
+				MessageBox.Show(App.CommandLineArguments.ArgumentsParser.GetHelpText(), "ILSpy Command Line Arguments");
+			}
 		}
 
 		static Assembly ResolvePluginDependencies(AssemblyLoadContext context, AssemblyName assemblyName)

ILSpy/CommandLineArguments.cs

@@ -54,7 +54,7 @@ namespace ICSharpCode.ILSpy
 				CommandOptionType.NoValue);
 
 			var oNavigateTo = app.Option<string>("-n|--navigateto <TYPENAME>",
-				"Navigates to the member specified by the given ID string.\r\nThe member is searched for only in the assemblies specified on the command line.\r\nExample: 'ILSpy ILSpy.exe --navigateTo:T:ICSharpCode.ILSpy.CommandLineArguments'",
+				"Navigates to the member specified by the given ID string.\r\nThe member is searched for only in the assemblies specified on the command line.\r\nExample: 'ILSpy ILSpy.exe --navigateto:T:ICSharpCode.ILSpy.CommandLineArguments'",
 				CommandOptionType.SingleValue);
 			oNavigateTo.DefaultValue = null;