Re: gnus should accept UTF8 even if UTF-8 is standard

[Richard M. Stallman]

    By the way, with such a behavior, when one types "utf8 TAB
    TAB", what completion list should we show?

That is a hard question.  Perhaps it should show the same
analogous set of completions

    utf8        utf8-auto
    utf8-auto-dos       utf8-auto-mac
    utf8-auto-unix      utf8-dos
    utf8-emacs  utf8-emacs-dos
    utf8-emacs-mac      utf8-emacs-unix
    utf8-mac    utf8-unix
    utf8-with-signature         utf8-with-signature-dos
    utf8-with-signature-mac     utf8-with-signature-unix

These could be treated somewhat like `completion-ignored-extensions'
for filenames: if a first-class name is a possible completion
then you don't see the second-class ones.  If no first-class name
is possible, then you do see the second-class ones.