Never mind (was: POSIX key destruction)

[Phil Torre]

After digging around in the POSIX key code, I think I now understand
that the key destructor function is supposed to set the value to NULL,
not RTEMS (which is why RTEMS doesn't do it :).  Thus, my previous
question was dumb, and the problem is in the ACE-supplied destructor.

(I'll go pester the ACE list and just announce here when everything
actually works.)

-Phil