This change allows fwknopd to write syslog messages to traditional syslog files
while running under upstart. Not forking into the background resulted in
messages meant for syslog were captured under /var/log/upstart/fwknop.log.
For the upstart config make sure only start fwknopd after a non-loopback
network interface is brought up. Also added a commented post-start script
to send an email whenever fwknopd is (re)started.
fwknop can be easily managed with upstart with the addition of this config.
Here is an example:
# service fwknop start
fwknop start/running, process 4269
