Fix overriding HelpName in Parser.cs, set it explicitly instead

src/Cli/Microsoft.TemplateEngine.Cli/Commands/SharedOptions.cs

@@ -10,13 +10,15 @@ public static class SharedOptions
         public static Option<FileInfo> OutputOption { get; } = new("--output", "-o")
         {
             Description = SymbolStrings.Option_Output,
+            HelpName = SymbolStrings.Option_Output_HelpName,
             Required = false,
             Arity = new ArgumentArity(1, 1)
         };
 
         public static Option<FileInfo> ProjectPathOption { get; } = new Option<FileInfo>("--project")
         {
-            Description = SymbolStrings.Option_ProjectPath
+            Description = SymbolStrings.Option_ProjectPath,
+            HelpName = SymbolStrings.Option_ProjectPath_HelpName
         }.AcceptExistingOnly();
 
         public static Option<bool> InteractiveOption { get; } = SharedOptionsFactory.CreateInteractiveOption();
@@ -26,6 +28,7 @@ public static class SharedOptions
         internal static Option<string> NameOption { get; } = new("--name", "-n")
         {
             Description = SymbolStrings.TemplateCommand_Option_Name,
+            HelpName = SymbolStrings.TemplateCommand_Option_Name_HelpName,
             Arity = new ArgumentArity(1, 1)
         };
 

src/Cli/Microsoft.TemplateEngine.Cli/Commands/SymbolStrings.resx

@@ -228,12 +228,18 @@ If command is specified without the argument, it lists all the template packages
   <data name="Option_Output" xml:space="preserve">
     <value>Location to place the generated output.</value>
   </data>
+  <data name="Option_Output_HelpName" xml:space="preserve">
+    <value>OUTPUT</value>
+  </data>
   <data name="Option_PackageFilter" xml:space="preserve">
     <value>Filters the templates based on NuGet package ID.</value>
   </data>
   <data name="Option_ProjectPath" xml:space="preserve">
     <value>The project that should be used for context evaluation.</value>
   </data>
+  <data name="Option_ProjectPath_HelpName" xml:space="preserve">
+    <value>PROJECT</value>
+  </data>
   <data name="Option_TagFilter" xml:space="preserve">
     <value>Filters the templates based on the tag.</value>
   </data>
@@ -259,6 +265,9 @@ If command is specified without the argument, it lists all the template packages
   <data name="TemplateCommand_Option_Name" xml:space="preserve">
     <value>The name for the output being created. If no name is specified, the name of the output directory is used.</value>
   </data>
+  <data name="TemplateCommand_Option_Name_HelpName" xml:space="preserve">
+    <value>NAME</value>
+  </data>
   <data name="TemplateCommand_Option_NoUpdateCheck" xml:space="preserve">
     <value>Disables checking for the template package updates when instantiating a template.</value>
   </data>

src/Cli/Microsoft.TemplateEngine.Cli/Commands/create/InstantiateCommand.Help.cs

@@ -320,11 +320,6 @@ internal static void ShowCommandOptions(
                 }
             }
 
-            foreach (Option cliOption in optionsToShow)
-            {
-                cliOption.EnsureHelpName();
-            }
-
             context.Output.WriteLine(LocalizationResources.HelpOptionsTitle());
             IEnumerable<TwoColumnHelpRow> optionsToWrite = optionsToShow.Select(o => context.HelpBuilder.GetTwoColumnRow(o, context));
             context.HelpBuilder.WriteColumns(optionsToWrite.ToArray(), context);