scripts/oschecks/amqp.py: make it executable to allow symlinked scripts to work
scripts/oschecks/amqp.py: make it executable to allow symlinked scripts to work

tcpcloud/monitoring-for-openstack,stackforge/monitoring-for-openstack,magic0704/monitoring-for-openstack,stackforge/monitoring-for-openstack,openstack/monitoring-for-openstack,tcpcloud/monitoring-for-openstack,openstack/monitoring-for-openstack,padthaitofuhot/monitoring-for-openstack,magic0704/monitoring-for-openstack,padthaitofuhot/monitoring-for-openstack