Re: [libvirt] [PATCH v2] Experimental libvirtd upstart job

exec stanza instead of script ... no script. Unfortunately, with exec stanza environment variables can only be set within upstart script (i.e., configuration in /etc/sysconfig/libvirtd can't work). Hence, we need to use script stanza, source sysconfig, and execute libvirtd without --daemon. For similar reasons we can't use limit stanza and need to handle DAEMON_COREFILE_LIMIT in job's script.