Example 2

Sep 12 12:57:19 zenoss[8432] user=lskywalker action=Edit 
  kind=ThresholdClass maxval=100 minval=0 old_minval=-100 
  thresholdclass="/Devices/Server/Linux/rrdTemplates/Device/thresholds/CPU pct"

In this example, user lskywalker edited values of threshold "CPU pct" by adding a max value of 100 and changing the min from -100 to 0.