Minor grammar cleanup of enroll-node-state
Minor grammar cleanup of enroll-node-state

Some minor grammar cleanup of the enroll-node-state

Change-Id: I730a9308537508250719c7a6fc9e97098dd36c25

openstack/ironic-specs,naterh/ironic-specs,bcornec/ironic-specs,NaohiroTamura/ironic-specs