Run glance-manage as {{ system_user }}
Run glance-manage as {{ system_user }}

Currently this task is run as root, however as glance has no separate
glance-manage.log file, this _could_ result in
/var/log/glance/glance-api.log being owned by root.  This change causes
glance-manage to be run as {{ system_user }} which should eliminate
this from happening.

jpmontez/os-ansible-deployment,sigmavirus24/openstack-ansible,pombredanne/os-ansible-deployment,git-harry/os-ansible-deployment,rcbops/ansible-lxc-rpc,os-cloud/os-ansible-deployment,yanyao/openstack-deployment-liberty,mattt416/ansible-lxc-rpc,antonym/openstack-ansible,os-cloud/os-ansible-deployment,git-harry/os-ansible-deployment,open-switch/infra_openstack-ansible,VaneCloud/openstack-ansible,shane-c/openstack-ansible,manuelfelipe/openstack-ansible,openstack/openstack-ansible,BjoernT/openstack-ansible,shane-c/openstack-ansible,sigmavirus24/openstack-ansible,manuelfelipe/openstack-ansible,sti-jans/openstack-ansible,cloudnull/os-ansible-deployment,yanyao/openstack-ansible,yanyao/openstack-deployment-liberty,mrda/openstack-ansible,AlphaStaxLLC/os-ansible-deployment,mattt416/ansible-lxc-rpc,bunchc/openstack-ansible,antonym/openstack-ansible,major/openstack-ansible,pombredanne/os-ansible-deployment,VaneCloud/openstack-ansible,sacharya/os-ansible-deployment,achekunov/openstack-ansible,manuelfelipe/openstack-ansible,mattt416/ansible-lxc-rpc,yanyao/openstack-deployment-liberty,mattt416/ansible-lxc-rpc,robb-romans/openstack-ansible,d34dh0r53/os-ansible-deployment,yanyao/openstack-deployment,miguelgrinberg/os-ansible-deployment,sti-jans/openstack-ansible,mancdaz/openstack-ansible,openstack/openstack-ansible,antonym/openstack-ansible,achekunov/openstack-ansible,jpmontez/os-ansible-deployment,yanyao/openstack-ansible,wenhuizhang/os-ansible-deployment,sigmavirus24/os-ansible-deployment,yanyao/openstack-deployment,jpmontez/os-ansible-deployment,mrda/openstack-ansible,weezer/openstack-ansible,rcbops/ansible-lxc-rpc,rcbops/ansible-lxc-rpc,hughsaunders/openstack-ansible,hughsaunders/openstack-ansible,yanyao/openstack-deployment,yanyao/newton,stevelle/os-ansible-deployment,wenhuizhang/os-ansible-deployment,achekunov/openstack-ansible,metral/os-ansible-deployment,hughsaunders/openstack-ansible,jpmontez/openstack-ansible,AlphaStaxLLC/os-ansible-deployment,dhanunjaya/os-ansible-deployment,sti-jans/openstack-ansible,yanyao/newton,hughsaunders/os-ansible-deployment,cfarquhar/openstack-ansible,mancdaz/openstack-ansible,git-harry/os-ansible-deployment,stackforge/os-ansible-deployment,shane-c/openstack-ansible,cloudnull/os-ansible-deployment,major/openstack-ansible,stevelle/os-ansible-deployment,weezer/openstack-ansible,stevelle/openstack-ansible,hughsaunders/os-ansible-deployment,open-switch/infra_openstack-ansible,jpmontez/openstack-ansible,yanyao/openstack-deployment,hughsaunders/openstack-ansible,Logan2211/openstack-ansible,hughsaunders/os-ansible-deployment,mrda/openstack-ansible,bunchc/openstack-ansible,rcbops/ansible-lxc-rpc,BjoernT/os-ansible-deployment,major/os-ansible-deployment,Logan2211/openstack-ansible,sacharya/os-ansible-deployment,stackforge/os-ansible-deployment,BjoernT/openstack-ansible,robb-romans/openstack-ansible,metral/os-ansible-deployment,pombredanne/os-ansible-deployment,d34dh0r53/os-ansible-deployment,cfarquhar/openstack-ansible,major/os-ansible-deployment,stevelle/openstack-ansible,AlphaStaxLLC/os-ansible-deployment,jpmontez/openstack-ansible,hughsaunders/os-ansible-deployment,open-switch/infra_openstack-ansible,BjoernT/os-ansible-deployment,BjoernT/os-ansible-deployment,dhanunjaya/os-ansible-deployment,VaneCloud/openstack-ansible,miguelgrinberg/os-ansible-deployment,sigmavirus24/os-ansible-deployment