BuildXmlDocument.cs

/////// FROM ///////
protected virtual XDocument BuildXmlDocument(IEnumerable<XElement> pages) => new XDocument(new XDeclaration("1.0", "UTF-8", "no"), new object[1]
{
  (object) new XElement(SitemapGenerator.ns + "urlset", new object[2]
  {
	(object) new XAttribute(XNamespace.Xmlns + "xhtml", (object) (XNamespace) "http://www.w3.org/1999/xhtml"),
	(object) pages
  })
});

/////// TO ///////
protected virtual XDocument BuildXmlDocument(IEnumerable<XElement> pages) => new XDocument(new XDeclaration("1.0", "UTF-8", "no"), new object[1]
{
  (object) new XElement(SitemapGeneratorExtension.ns + "urlset", new object[2]
  {
	(object) new XAttribute(XNamespace.Xmlns + "xhtml", (object) (XNamespace) "http://www.w3.org/2001/XMLSchema-instance"),
	(object) pages
  })
});