As stated before in this thread you just replace OUTFILE=/dev/stdout with OUTFILE=/dev/null on line 156?
And similarly OUTFILE="$1" to OUTFILE=/dev/null on line 178 in case something is calls it with the -o option.
Obviously save a backup before messing with file!
The log messages seem quite limited with the k3 from what I've seen, no long/lat etc.
It just looks like debug log info, I imagine the framework can send back other info on what you are reading etc. with wispernet sync.