dotnet list reference fix

src/dotnet/commands/dotnet-list/ListCommandParser.cs

@@ -19,7 +19,6 @@ namespace Microsoft.DotNet.Cli
                            CommonOptions.HelpOption(),
                            Create.Command("reference",
                                           LocalizableStrings.AppFullName,
-                                          Accept.ExactlyOneArgument(),
                                           CommonOptions.HelpOption()));
     }
 }

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

@@ -20,7 +20,7 @@ namespace Microsoft.DotNet.Tools.List
         internal override Dictionary<string, Func<AppliedOption, CommandBase>> SubCommands =>
             new Dictionary<string, Func<AppliedOption, CommandBase>>
             {
-                { "list", o => new ListProjectToProjectReferencesCommand(o) }
+                { "reference", o => new ListProjectToProjectReferencesCommand(o) }
             };
 
         public static int Run(string[] args)