[collectd] Problem with [new] ping plugin

[Piotrek Kaczmarek]

http://k.daleka.net/ping_gr.png

At 4am i've changed collectd 3.7.2 (with ping plugin using libping) to 
collectd 3.11 (with ping plugin using liboping). New version works quite 
strange. This is ping graph that shows ping to server itself. I think 
liboping gives bad results (7ms to localhost?). What do you think?