Rather than totally disabling the logging, inform it we're about to exit
so we can log messages over the exit cleanly too. This aids debugging. It
also avoids a race where the logging handler could still error whilst
shutting down.
Also remove a race window by notificing the handler of the shutdown
first, before triggering it. This removes a race window I watched in
local testing.
(From OE-Core rev: 0e19f31a1005f94105e1cef252abfffcef2aafad)
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
e293a37935