Update CLI options and help text

src/dotnet-core-uninstall/LocalizableStrings.resx

@@ -353,10 +353,10 @@ This tool cannot uninstall versions of the runtime or SDK that are installed usi
 </value>
   </data>
   <data name="HelpExplanationParagraphMac" xml:space="preserve">
-    <value>(*) By default, SDKs and Runtimes that have a high probability of being used by Visual Studio for Mac or SDKs are not removed. To remove these, specify them individually or use --force. If removing SDKs or Runtimes causes issues with your installation of Visual Studio for Mac, run “Repair”. SDKs and Runtimes are available for download at aka.ms/dotnet-core-download.</value>
+    <value>(*) By default, SDKs and Runtimes that have a high probability of being used by Visual Studio for Mac or SDKs are not removed. To remove these, specify them individually or use --force. If removing SDKs or Runtimes causes issues with your installation of Visual Studio for Mac, run “Repair”. SDKs and Runtimes are available for download at https://aka.ms/dotnet-core-download.</value>
   </data>
   <data name="HelpExplanationParagraphWindows" xml:space="preserve">
-    <value>(*) By default, SDKs and Runtimes that have a high probability of being used by Visual Studio are not removed. To remove these, specify them individually or use --force. If removing SDKs or Runtimes causes issues with your installation of Visual Studio, run “Repair”. SDKs and Runtimes are available for download at aka.ms/dotnet-core-download.</value>
+    <value>(*) By default, SDKs and Runtimes that have a high probability of being used by Visual Studio are not removed. To remove these, specify them individually or use --force. If removing SDKs or Runtimes causes issues with your installation of Visual Studio, run “Repair”. SDKs and Runtimes are available for download at https://aka.ms/dotnet-core-download.</value>
   </data>
   <data name="MacConfirmationPromptOutputFormat" xml:space="preserve">
     <value>The following items will be removed:
@@ -390,4 +390,10 @@ Warning: {0}: {1}
 Uninstalling this item will cause Visual Studio for to break.
 </value>
   </data>
+  <data name="ListArm64OptionDescription" xml:space="preserve">
+    <value>List arm64 .NET Core SDKs or Runtimes.</value>
+  </data>
+  <data name="UninstallArm64OptionDescription" xml:space="preserve">
+    <value>Can be used with --sdk, --runtime and --aspnet-runtime to remove arm64.</value>
+  </data>
 </root>

src/dotnet-core-uninstall/Shared/BundleInfo/BundleArch.cs

@@ -10,6 +10,6 @@ internal enum BundleArch
     {
         X86 = 0x1,
         X64 = 0x2,
-        Arm64 = 0x3
+        Arm64 = 0x4
     }
 }

src/dotnet-core-uninstall/Shared/Configs/CommandLineConfigs.cs

@@ -122,6 +122,10 @@ internal static class CommandLineConfigs
             $"--{X86OptionName}",
             LocalizableStrings.ListX86OptionDescription);
 
+        public static readonly Option ListArm64Option = new Option(
+            $"--{Arm64OptionName}",
+            LocalizableStrings.ListArm64OptionDescription);
+
         public static readonly Command VersionSubcommand = new Command("--version")
         {
             IsHidden = true
@@ -167,7 +171,8 @@ internal static class CommandLineConfigs
         public static readonly Option[] ArchUninstallOptions = new Option[]
         {
             new Option($"--{X64OptionName}", LocalizableStrings.UninstallX64OptionDescription),
-            new Option($"--{X86OptionName}", LocalizableStrings.UninstallX86OptionDescription)
+            new Option($"--{X86OptionName}", LocalizableStrings.UninstallX86OptionDescription),
+            new Option($"--{Arm64OptionName}", LocalizableStrings.UninstallArm64OptionDescription)
         };
 
         public static readonly Option[] AdditionalUninstallOptions = new Option[]
@@ -244,7 +249,8 @@ static CommandLineConfigs()
             {
                 ListAuxOptions = ListAuxOptions
                     .Append(ListX64Option)
-                    .Append(ListX86Option);
+                    .Append(ListX86Option)
+                    .Append(ListArm64Option);
             }
             AssignOptionsToCommand(ListCommand, ListAuxOptions);