bug#12327: Signal-handler cleanup for Emacs

[Eli Zaretskii]

> From: Andy Moreton <andrewjmoreton@gmail.com>
> Date: Thu, 06 Sep 2012 17:54:29 +0100
> 
> > I think I fixed this in revision 109907 on the trunk, please test.  At
> > least "M-x shell" followed by "exit RET" no longer winds up in
> > emacs_abort for me.  I cannot test Andrew's recipe, as I don't have
> > Cygwin installed.
> 
> Thanks Eli, it all seems to happy again.

Thanks for testing, I'm closing the bug.