Attempt to fix issue with extra command line arguments (#501)

* Attempt to fix issue with extra command line arguments

fixes #500

* Fix usings

src/DacpacTool/Program.cs

@@ -1,6 +1,7 @@
 using System;
 using System.CommandLine;
 using System.CommandLine.NamingConventionBinder;
+using System.CommandLine.Parsing;
 using System.Diagnostics;
 using System.IO;
 using System.Threading;
@@ -72,7 +73,8 @@ static async Task<int> Main(string[] args)
             var rootCommand = new RootCommand { buildCommand, collectIncludesCommand, deployCommand };
             rootCommand.Description = "Command line tool for generating a SQL Server Data-Tier Application Framework package (dacpac)";
 
-            return await rootCommand.InvokeAsync(args);
+            var processed = rootCommand.Parse(args);
+            return await processed.InvokeAsync();
         }
 
         private static int BuildDacpac(BuildOptions options)