Getting [] appended to my Doctype when I save xmlDocument.sav e()

[Stephen Ward]

I have a simple little project open a xml file change a few nodes save the
file, no big deal.

The problem is that the doctype is getting modified when I save the file.

So it looks like this: <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN"
"http://www.apple.com/DTDs/PropertyList-1.0.dtd">
But when I save it : <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN"
"http://www.apple.com/DTDs/PropertyList-1.0.dtd"[]>

You can see at the end it appends the [] which invalidates the file. No
where in the code do I specifically modify the doctype. Is there a way to
prevent the doctype from getting modified , this appears to be a bug. As a
workaround I¹ve replaced the Doctype node. But this is a kluge.

Snippet
XmlNodeList myList;
XmlDocument myDoc = new XmlDocument();

myDoc.Load("c:\ \inetpub\\wwwro ot\\template.mo bileconfig");

myList= myDoc.GetElemen tsByTagName("ke y");

do some stuff .....
XmlTextWriter w = new XmlTextWriter(" C:\\xmlFiles\\" + username +
".mobileconfig" ,new UTF8Encoding(fa lse));

myDoc.Save(w);