Sam Ruby wrote:
...
I don't know the root cause of these differences, nor do I know whether
or not they indicate that there might be other, more substantive,
differences that I missed.
> ...
The boilerplate isn't part of the XML source, it's generated by xml2rfc.
Which means that everytime the RFC Editor decides to make a minor
change, xml2rfc will have to be updated. It doesn't help that these
changes usually aren't announced, nor used consistently.
That being said, you may get of some more differences by including the
<?rfc rfcedstyle="yes"?>
processing instruction.
Best regards, Julian