On the reuse-ra-session branch: Make the stats summary script work again.
On the reuse-ra-session branch: Make the stats summary script work again.

* tools/dev/ra-cache-summary.py
  (stat_rx): Fix match group names.
  (top-level): Summarize expire and expunge counts and print them.


git-svn-id: e84a316744199a3455081dfc07023ba2eb93344a@1657892 13f79535-47bb-0310-9956-ffa450edef68

YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion