bug#15176: 24.3.50; Directory copy broken on w32

[Eli Zaretskii]

> Date: Sat, 24 Aug 2013 08:54:57 +0100
> From: Richard Copley <rcopley@gmail.com>
> 
> Set up a directory "c:/temp/test" with two empty subdirectories "1"
> and "2", and try to copy it recursively to "c:/temp/test-copy"
> using `C' in Dired mode.  The command fails, having created
> "test-copy/1" but not "test-copy/2". The error is:
> 
> Copy `c:/temp/test' to `c:/temp/test-copy' failed:
> (file-error Setting file times permission denied c:/temp/test-copy/1)

Fixed in trunk revision 113989.