start-stop-daemon.sh: fix regression in chroot support
start-stop-daemon.sh: fix regression in chroot support

The support for the chroot variable was broken in 0.16, this fixes that
breakage.

OpenRC/openrc,OpenRC/openrc,williamh/openrc,OpenRC/openrc,dwfreed/openrc,williamh/openrc,williamh/openrc,dwfreed/openrc,dwfreed/openrc