bro-cut syntax

[jeffgeiger]

In order to make this work for me, I had to modify the bro-cut syntax a little:

-bro-cut -F , $1,$2,$3 | sed '1 s/^/source,target,value\n/' >> temp.test
+bro-cut -F , $1 $2 $3 | sed '1 s/^/source,target,value\n/' >> temp.test

This was tested both on CentOS 7.2 using bro 2.4.1 installed from the SimpleRock project (https://github.com/CyberAnalyticDevTeam/SimpleRock) and on OSX with bro 2.4.1 installed from Homebrew.