fixed directory listing for non-blockdevice osds
fixed directory listing for non-blockdevice osds

without the directory switch ls -l lists the content of osd directories,
and not the directory names. Maybe the output of ls -l differs on various
distribuitons. ls -ld should work on every distro.

this patch and commit message was written and originally submitted by
https://github.com/b0e as https://github.com/stackforge/puppet-ceph/pull/7

Change-Id: I7899a249df677c899016ddbfe36eb4a8b6d6135c

rdo-puppet-modules/puppet-ceph,vshn/puppet-ceph,MI-OSiRIS/puppet-ceph,koder-ua/ceph,kevinlowrie/puppet-ceph,fuel-infra/puppet-ceph,aldavud/puppet-ceph,openstack/puppet-ceph,tdb/puppet-ceph,Emmenemoi/puppet-ceph,openstack/puppet-ceph,cloudbuy/puppet-ceph,gwdg/puppet-ceph,pdrakeweb/puppet-ceph,fuel-infra/puppet-ceph,IPnett/puppet-ceph,stackforge/puppet-ceph,fultonj/puppet-ceph,NeCTAR-RC/puppet-ceph,0xf2/puppet-ceph,cloudbuy/puppet-ceph,norcams/puppet-ceph,MI-OSiRIS/puppet-ceph,norcams/puppet-ceph,ceph/puppet-ceph,koder-ua/ceph