Log Message:
Update darkstat to 3.0.711 by mainteiner update request via PR 39401.

Changes since 3.0.708:
 - Split --debug into --verbose and --no-daemon
 - Include launchd config and instructions for running darkstat
   on Mac OS X.  Contributed by Damien Clauzel.
 - Implement PPPoE decoding on ethernet iface. (--pppoe)
 - Web: Add automatic reload button.  Thanks Dennis!
 - Web: Add a graph legend with min/avg/max.
 - Web: Remove hashtable stats pages.