bug#22300: 25.1.50; Dired -- renaming folders/files to CamelCase/UPPERCASE/lowercase.

[Eli Zaretskii]

> Date: Mon, 4 Jan 2016 11:27:34 -0800 (PST)
> From: Drew Adams <drew.adams@oracle.com>
> Cc: 22300@debbugs.gnu.org, esq@lawlist.com
> 
> If it turns out that Emacs cannot get the right info about this
> automatically, how about adding a user option, so a user can at
> least tell Emacs whether the OS treats file/folder names
> case-sensitively?

It's not a single value, the value can be different for each volume.