tests/test-hup

Add endswithsep() and use it instead of using os.sep and os.altsep directly.

This change is intended to allow hooking endswithsep() by win32mbcs
extension for MBCS support.

#!/bin/sh

hg init
mkfifo p

hg serve --stdio < p &
P=$!
(echo lock; echo addchangegroup; sleep 5) > p &
Q=$!
sleep 3
kill -HUP $P
wait
echo .hg/* .hg/store/*