[PATCHv2][BZ #13613] Allow a single-threaded process to cancel itself

[Siddhesh Poyarekar]

On Thu, 10 May 2012 16:17:02 -0400, Carlos wrote:
> If that's the case then please check this in on Monday if nobody else
> objects.
> 

Done. Committed to master and updated NEWS and ChangeLog.

Regards,
Siddhesh