Fix last commit using "of" instead of "or"
Fix last commit using "of" instead of "or"

It's SAN or NFS - not SAN of NFS, a recent commit
broke this.

Change-Id: Icf8d39173c4f70d0d7234a31c0ad10dffca929bc

potsmaster/openstack-manuals,openstack/openstack-manuals,AlekhyaMallina-Vedams/openstack-manuals,kairoaraujo/openstack-manuals,saeki-masaki/openstack-manuals,gongysh2004/openstack-manual,AlekhyaMallina-Vedams/openstack-manuals,openstack/openstack-manuals,Akasurde/openstack-manuals,openstack/openstack-manuals,openstack/openstack-manuals,kairoaraujo/openstack-manuals,saeki-masaki/openstack-manuals,AlekhyaMallina-Vedams/openstack-manuals,potsmaster/openstack-manuals,Akasurde/openstack-manuals,gongysh2004/openstack-manual