Fix up tabular output for the 'stats' command.
Fix up tabular output for the 'stats' command.

dormando/memcached,dormando/memcached,dormando/memcached,memcached/memcached,memcached/memcached,dormando/memcached,memcached/memcached,dormando/memcached,memcached/memcached,memcached/memcached