bug#21447: 25.0.50; doc string of `character-fold-search'

[Lars Ingebrigtsen]

Drew Adams <drew.adams@oracle.com> writes:

> 1. This should be a defcustom, not a defvar.  But this improvement has
> apparently already been agreed to (per emacs-devel correspondence).
>
> 2. The doc string should treat characters as characters.  It should not
> just put " and a inline, with no syntax making them stand out.
>
> They should be written as `?\"' and `?a'.  Or at least as ?\" and ?a.
> Or possibly as `"' and `a'.
>
> 3. Please replace "(and then some)" by some indication of what is meant
> by it.  Just say that `?a' also matches other kinds of "a-like"
> characters, such as <GIVE AN EXAMPLE>.

I can't find a variable called `character-fold-search'...

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