[RFA] windows-nat.c: Handle CTRL_BREAK_EVENT in ctrl_c_handler

[Joel Brobecker]

> Could we apply both 
> the patch to windows-nat.c and to docs to branch
> or is it too late?

It is not too late, you have until tomorrow for 7.0. IIRC, this patch
was approved for the branch, right?

-- 
Joel