Fixes typo to enable log rotate for Octavia
Fixes typo to enable log rotate for Octavia

Currently the log-rotate in octavia doesn't work because there was
a typo in the log directory

Change-Id: I6d46bc477ad9db375cc90899b152306bd20f19cc

bunchc/openstack-ansible,bunchc/openstack-ansible,stackforge/os-ansible-deployment,stackforge/os-ansible-deployment,openstack/openstack-ansible,openstack/openstack-ansible