Bugzilla Bug 123169

We already have a pid file specified in stop(), so the start function should
also use it.  An added benefit of this approach is that this also makes the
init scripts work when you run multiple instances of snort.  Here's what the
start function should look like:

start() {
    checkconfig || return 1
    ebegin "Starting snort"
    start-stop-daemon --start --quiet --exec /usr/bin/snort --pidfile
{$PIDFILE} \
        -- ${SNORT_OPTS} >/dev/null 2>&1
    eend $?
}

Thanks, added in 2.4.3-r2.