Description of problem:
Since this directory is not owned by prelink, it is hard to add a security
context to it.  In MLS/Strict policy we lock down crond, so it is not allowed to
write to var_lib_t.  If these files were in /var/lib/prelink (Or some other
directory prelink could own) we could label that prelink_var_lib_t and allow
cron to update it.