On Tue, Oct 27, 2015 at 8:14 PM, Eli Zaretskii <eliz@gnu.org> wrote:

> Do you see the same result if you invoke 'echo' from the cmd prompt?
> IOW, does this mean Windows 10 changed the behavior of the built-in
> 'echo', and it now removes trailing whitespace from its argument?

IIUC your question, no

C:\Users\Juanma>echo A>A.txt

C:\Users\Juanma>echo B    >B.txt

C:\Users\Juanma>dir *.txt

28/10/2015  00:23                 3 A.txt
28/10/2015  00:23                 7 B.txt
               2 archivos             10 bytes