🚀 go-pugleaf

GNU Emacs 18.53.11 on NeXT 1.0.1

I would find it useful for Revert to tell you whether the version it
reverted to is in fact different or the same (at least as far as dates
go) as the in-buffer version.  This also provides a positive
confirmation that the revert happened.

The case which is currently most confusing is where 1) the file has
NOT changed and 2) it is write-protected.  It is confusing because 1)
the buffer doesn't change and 2) you get a message at the bottom of
the screen saying "File is write protected", which could be
interpreted as an error message.

I would prefer Revert to say

	Disk file unchanged.
or
	Buffer updated from disk.

as the case may be.  I find this information more useful than "File is
write protected."