Set SyslogIdentifier for uwsgi processes
Set SyslogIdentifier for uwsgi processes

Now that we aren't using native journal messages by default, the
syslog identifier of all the uwsgi processes is the same. We should be
more explicit with those.

Change-Id: Id5406d02407b022d4016517c2e18890973876d88

noironetworks/devstack,richliu/devstack,noironetworks/devstack,group-policy/devstack,group-policy/devstack,nawawi/openstack,nawawi/openstack,dtroyer/devstack,openstack-dev/devstack,dtroyer/devstack,richliu/devstack,openstack-dev/devstack