Change /var/lib/openafs/local permissions to 700

Change /var/lib/openafs/local permissions to 700

* Change the permissions of /var/lib/openafs/local to 0700 to match
  upstream defaults.  This directory contains the fssync.sock file used
  for coordination between the fileserver and the volserver, and
  commands sent to that socket are not authenticated.  Linux protects
  the socket from unprivileged writes by default, but other operating
  systems do not.  Upstream therefore wants this directory to be 0700
  and bosserver will complain by default if it's not.  Changing the
  permissions let us drop a patch to bosserver.