fix program args parsing

AsbCloudWebApi/Program.cs

@@ -11,7 +11,7 @@ namespace AsbCloudWebApi
         public static void Main(string[] args)
         {
             //new TraceListenerView(); // to trace mysterious errors
-            if(args?.Length > 1 )
+            if(args?.Length > 0 )
             {
                 if (args.Contains("db_init")) { 
                     var connectionStringName = "DefaultConnection";
@@ -26,6 +26,7 @@ namespace AsbCloudWebApi
                     return;
                 }
                 WriteHelp();
+                return;
             }            
             
             CreateHostBuilder(args).Build().Run();