Modify style in node_tracers so it followed general Node.js code convetions.
Modify style in node_tracers so it followed general Node.js code convetions.

betable/node-tryfer,cjthompson/node-tryfer,niels4/node-tryfer,niccaluim/node-tryfer,niccaluim/node-tryfer,cjthompson/node-tryfer,cjthompson/node-tryfer,tryfer/node-tryfer,niels4/node-tryfer,betable/node-tryfer,niccaluim/node-tryfer,tryfer/node-tryfer,betable/node-tryfer,niels4/node-tryfer,tryfer/node-tryfer