Fix grammatical mistake, Changed character from "an" to "a"
Fix grammatical mistake, Changed character from "an" to "a"

Change-Id: I407793db93ce002cb88bb04193b46869e26d63bc

GalenMa/kolla,openstack/kolla,stackforge/kolla,nihilifer/kolla,coolsvap/kolla,stackforge/kolla,limamauricio/mykolla,openstack/kolla,negronjl/kolla,limamauricio/mykolla,dardelean/kolla-ansible,stackforge/kolla,mandre/kolla,dardelean/kolla-ansible,toby82/kolla,tonyli71/kolla,mrangana/kolla,dardelean/kolla-ansible,coolsvap/kolla,intel-onp/kolla,negronjl/kolla,mandre/kolla,GalenMa/kolla,negronjl/kolla,toby82/kolla,mandre/kolla,tonyli71/kolla,rahulunair/kolla,intel-onp/kolla,toby82/kolla,nihilifer/kolla,limamauricio/mykolla,mrangana/kolla,coolsvap/kolla,rahulunair/kolla