Readline Documentation

[John Devin]

Hello all,

Sorry in advance if this is poorly formatted; I used plain-text mode
in gmail but who knows if that works properly.

While hunting down some problems on a terminal, I ran across the
option 'prefer-visible-bell'. It took me some time looking into this
before finding out it was deprecated in favor of 'bell-style' about 20
years ago, per:
https://lists.gnu.org/archive/html/bug-bash/2016-02/msg00186.html.

Despite that, it still shows up in stackoverflow answers and reddit
threads even from as recently as six months ago:
https://www.reddit.com/r/bashonubuntuonwindows/comments/1b55k9f/that_stupid_bell/kt3l0hm/.

Could this option be documented in the man page? It would have saved
me a bit of wasted time, and it would give me a resource to point to
(other than an old mailing list thread) to authoritatively state it's
been superseded. Is it non-functional now? If so, is it synonymous
with setting bell-style visual? And is setting it off synonymous with
bell-style none?

Additionally, as discussed in the mail link above, I think the
'convert-meta' and 'input-meta' need slightly more description. For
example, is this statement accurate: "The convert-meta variable has no
effect if input-meta is off." From the manpage I would think so, but
I'm just not confident. I also can't tell conclusively whether the
output-meta variable is affected by convert-meta, or vice-versa.

Thanks for your time,
John Devin