Fix upstart stop hang when you've wrongly used `expect fork` or `expect daemon`

fix_upstart.sh

#!/bin/bash

sleep 0.0000001 &
firstPID=$!
#first lets exhaust the space
while (( $! >= $firstPID ))
do
    sleep 0.000001 &
done

# [ will use testPID itself, we want to use the next pid
declare -i testPID
testPID=$(($1 - 1))
while (( $! < $testPID ))
do
    sleep 0.0000001 &
done

# fork a background process then die so init reaps its pid
sleep 3 &
echo "Init will reap PID=$!"
kill -9 $$
# EOF