bug#27986: 26.0.50; 'rename-file' can rename files without confirmation

[Eli Zaretskii]

> From: Ken Brown <kbrown@cornell.edu>
> Date: Mon, 14 Aug 2017 09:44:54 -0400
> Cc: 27986@debbugs.gnu.org
> 
> I think we still need the case-insensitivity test on Cygwin as well as 
> on MS-Windows.

Yes.  But I think there are more general issues with this, which I
will describe separately.