lv-create: add an example logfile_path config option in lv_vars.yml
lv-create: add an example logfile_path config option in lv_vars.yml

Signed-off-by: Andrew Schoen <1bb641dc23c3a93cce4eee683bcf4b2bea7903a3@redhat.com>

ceph/ceph-ansible,fgal/ceph-ansible,fgal/ceph-ansible,ceph/ceph-ansible