[cw-ctl] use default `mkdtemp()` behaviour to store backup file internally When using `mkdtemp(dir=instbkdir)`, a dedicated system user which hasn't the permissions to write in /var/lib/cubicweb/instances/$INSTANCE/backup will not be able to run the db-dump command.

#! /bin/sh -e
 
case "$1" in
    purge)
	rm -rf /etc/cubicweb.d/
	rm -rf /var/log/cubicweb/
	rm -rf /var/lib/cubicweb/
    ;;
esac
 
#DEBHELPER#
 
exit 0