- If the misc/pf-ring-load-balancing script is loaded, the correct
environment variables will be set to enable automatic flow based
load balancing used pf_ring if Bro is built against the pf_ring
libpcap wrapper. Loading the script on non-Linux OSs or when Bro
isn't linked against the correct libpcap has no known side effects
since the script just sets environment variables.
- Added a BiF named setenv for setting environment variables.