Program to patch Enterprise.wsdl which Salesforce thinks is okay but causes Microsoft's wsdl.exe to emit non-working code

FixEnterpriseWsdl.cs

namespace FixEnterpriseWsdl
{
    using System;
    using System.IO;
    using System.Linq;
    using System.Reflection;
    using System.Xml;

    /// <summary>
    /// Implements a fix for https://developer.salesforce.com/forums?id=906F0000000AiPEIA0
    /// </summary>
    class Program
    {
        static int Main(string[] args)
        {
            if (args.Length == 0)
            {
                Console.WriteLine("Implements a fix for https://developer.salesforce.com/forums?id=906F0000000AiPEIA0");
                Console.WriteLine("Expects a single command line parameter - a path to an Enterprise.wsdl file");
                return -1;
            }

            if (!File.Exists(args[0]))
            {
                Console.WriteLine("File not found: " + args[0]);
                return -1;
            }

            Console.WriteLine(Assembly.GetExecutingAssembly().GetName().Name + " started");

            const string docNsUrl = "http://schemas.xmlsoap.org/wsdl/";
            const string xsdNsUrl = "http://www.w3.org/2001/XMLSchema";

            try
            {
                var doc = new XmlDocument();
                doc.Load(args[0]);

                var nsManager = new XmlNamespaceManager(doc.NameTable);
                nsManager.AddNamespace("docns", docNsUrl);
                nsManager.AddNamespace("xsd", xsdNsUrl);

                XmlElement docElement = doc.DocumentElement;

                XmlNode node = docElement.SelectSingleNode("docns:types/xsd:schema/xsd:complexType[@name='ListViewRecord']", nsManager);

                if (node.ChildNodes.OfType<XmlElement>().Count() == 1)
                {
                    // insert a node after the first one
                    var newNode = doc.CreateElement("xsd", "attribute", xsdNsUrl);

                    var nameAttribute = doc.CreateAttribute("name");
                    nameAttribute.Value = "tmp";

                    var typeAttribute = doc.CreateAttribute("type");
                    typeAttribute.Value = "xsd:string";

                    newNode.Attributes.Append(nameAttribute);
                    newNode.Attributes.Append(typeAttribute);

                    node.AppendChild(newNode);

                    doc.Save(args[0]);

                    Console.WriteLine("Fixed " + args[0]);
                }
                else
                {
                    Console.WriteLine("Nothing to do");
                }

                return 0;
            }
            catch (Exception ex)
            {
                Console.WriteLine("{0}: {1}", ex.GetBaseException().GetType().Name, ex.GetBaseException().Message);
                return -1;
            }
        }
    }
}