format change of BIND statistics file

[elmarknipp]

The statistics file of the DNS BIND daemon, produced via rndc has changed. Therefore the bind plugin doesn't work anymore.

It's not a big deal to change that, perhaps some has done this already.

See also http://groups.google.com/group/comp.protocols.dns.bind/browse_thread/thread/dc51e675c64f945a/f38c63b...