Refactoring: Move UsageText to a separate file

src/dotnet/commands/dotnet-help/HelpCommand.cs

@@ -8,53 +8,14 @@ using System.Runtime.InteropServices;
 using Microsoft.DotNet.Cli.CommandLine;
 using Microsoft.DotNet.Cli.Utils;
 using Microsoft.DotNet.Cli;
+using static HelpUsageText;
 
 namespace Microsoft.DotNet.Tools.Help
 {
     public class HelpCommand
     {
-        private static readonly string UsageText = $@"{LocalizableStrings.Usage}: dotnet [host-options] [command] [arguments] [common-options]
-
-{LocalizableStrings.Arguments}:
-  [command]             {LocalizableStrings.CommandDefinition}
-  [arguments]           {LocalizableStrings.ArgumentsDefinition}
-  [host-options]        {LocalizableStrings.HostOptionsDefinition}
-  [common-options]      {LocalizableStrings.OptionsDescription}
-
-{LocalizableStrings.CommonOptions}:
-  -v|--verbose          {LocalizableStrings.VerboseDefinition}
-  -h|--help             {LocalizableStrings.HelpDefinition} 
-
-{LocalizableStrings.HostOptions}:
-  -d|--diagnostics      {LocalizableStrings.DiagnosticsDefinition}
-  --version             {LocalizableStrings.VersionDescription}
-  --info                {LocalizableStrings.InfoDescription}
-
-{LocalizableStrings.Commands}:
-  new           {LocalizableStrings.NewDefinition}
-  restore       {LocalizableStrings.RestoreDefinition}
-  build         {LocalizableStrings.BuildDefinition}
-  publish       {LocalizableStrings.PublishDefinition}
-  run           {LocalizableStrings.RunDefinition}
-  test          {LocalizableStrings.TestDefinition}
-  pack          {LocalizableStrings.PackDefinition}
-  migrate       {LocalizableStrings.MigrateDefinition}
-  clean         {LocalizableStrings.CleanDefinition}
-  sln           {LocalizableStrings.SlnDefinition}
-
-Project modification commands:
-  add           Add items to the project
-  remove        Remove items from the project
-  list          List items in the project
-
-{LocalizableStrings.AdvancedCommands}:
-  nuget         {LocalizableStrings.NugetDefinition}
-  msbuild       {LocalizableStrings.MsBuildDefinition}
-  vstest        {LocalizableStrings.VsTestDefinition}";
-
         public static int Run(string[] args)
         {
-
             CommandLineApplication app = new CommandLineApplication(throwOnUnexpectedArg: false);
             app.Name = "dotnet help";
             app.FullName = LocalizableStrings.AppFullName;

src/dotnet/commands/dotnet-help/HelpUsageText.cs

@@ -0,0 +1,44 @@
+using Microsoft.DotNet.Tools.Help;
+
+internal static class HelpUsageText
+{
+    public static readonly string UsageText =
+        $@"{LocalizableStrings.Usage}: dotnet [host-options] [command] [arguments] [common-options]
+
+{LocalizableStrings.Arguments}:
+  [command]             {LocalizableStrings.CommandDefinition}
+  [arguments]           {LocalizableStrings.ArgumentsDefinition}
+  [host-options]        {LocalizableStrings.HostOptionsDefinition}
+  [common-options]      {LocalizableStrings.OptionsDescription}
+
+{LocalizableStrings.CommonOptions}:
+  -v|--verbose          {LocalizableStrings.VerboseDefinition}
+  -h|--help             {LocalizableStrings.HelpDefinition} 
+
+{LocalizableStrings.HostOptions}:
+  -d|--diagnostics      {LocalizableStrings.DiagnosticsDefinition}
+  --version             {LocalizableStrings.VersionDescription}
+  --info                {LocalizableStrings.InfoDescription}
+
+{LocalizableStrings.Commands}:
+  new           {LocalizableStrings.NewDefinition}
+  restore       {LocalizableStrings.RestoreDefinition}
+  build         {LocalizableStrings.BuildDefinition}
+  publish       {LocalizableStrings.PublishDefinition}
+  run           {LocalizableStrings.RunDefinition}
+  test          {LocalizableStrings.TestDefinition}
+  pack          {LocalizableStrings.PackDefinition}
+  migrate       {LocalizableStrings.MigrateDefinition}
+  clean         {LocalizableStrings.CleanDefinition}
+  sln           {LocalizableStrings.SlnDefinition}
+
+Project modification commands:
+  add           Add items to the project
+  remove        Remove items from the project
+  list          List items in the project
+
+{LocalizableStrings.AdvancedCommands}:
+  nuget         {LocalizableStrings.NugetDefinition}
+  msbuild       {LocalizableStrings.MsBuildDefinition}
+  vstest        {LocalizableStrings.VsTestDefinition}";
+}