Re: [rmail-mbox-branch]: mail-utils

[Richard Stallman]

    Oh, BTW, of course the files should probably stay in their current location
    in the Gnus distribution -- the renaming will only effect their location
    within the Emacs source tree.

If some files from Gnus are moved out of the gnus subdirectory, that
means we will maintain them as ordinary parts of Emacs.

It is fine if Gnus developers copy changes from these files, and
contribute changes to them.  But they can't just install new
versions of them as they do with the Gnus files.