bug#35564: [PATCH v5] Tweak dired warning about "wildcard" characters

[Juri Linkov]

>> 1. Why there is the verbose option “toggle [D]etails”
>>    while just “[?]” should be enough.  For example, like
>>    in query-replace typing ‘?’ displays the Help window,
>>    just typing ‘?’ here could display the Dired Help.
>
> '?' is an automatic option added by read-multiple-choice.  It pops-up an
> autogenerated buffer repeating the prompt and showing longer
> descriptions for each option.
>
> I would have liked '?' to show what I ended up putting in the "details"
> buffer; ideally read-multiple-choice would have an optional HELP-MESSAGE
> argument that could be squeezed between the prompt and the key
> description when showing the help buffer.

'?' would be more preferable since this is the standard way to ask
for additional information in Dired, for example, on error it shows:

  Dired error--type ? for details

where '?' shows the details.  dired-do-shell-command should do the same
in its prompt.  read-multiple-choice could be changed to not add
its own help option when a '?' is provided in its 'choices' arg.