[Patch] Fixing the PROCESS_DUP_HANDLE security hole.

[Christopher Faylor]

On Thu, Dec 02, 2004 at 09:13:11PM -0500, Pierre A. Humblet wrote:
>- Non cygwin processes started by cygwin are not shown by ps
>  anymore and cannot be killed.
>
>- spawn(P_DETACH) does not work correctly when spawning non-cygwin 
>  processes.
>  This is due to using a pipe to detect process termination. 

The above are both unintentional and fixable.

cgf