hg parents: don't pass an OS-specific path to repo.filectx
The only reason to use the matcher code instead of calling util.canonpath
directly is to be able to use "path:canonical/path/to/file" patterns.
#!/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/*