ubuntu rc.local for bitcoind not running

this is from:
https://github.com/kyledrake/coinpunk/blob/master/docs/install-ubuntu.md
they explain to put in /etc/rc.local the following:
/usr/bin/sudo -u YOURSHELLUSERNAME sh -c "/usr/bin/bitcoind -daemon"

I reboot the server and bitcoind is NOT running

here is the rc.local file:


#!/bin/sh -e
#
# rc.local
#
# This script is executed at the end of each multiuser runlevel.
# Make sure that the script will "exit 0" on success or any other
# value on error.
#
# In order to enable or disable this script just change the execution
# bits.
#
# By default this script does nothing.
/usr/bin/sudo -u root sh -c "/usr/bin/bitcoind -daemon"

exit 0


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(please note; removing sudo does not work either)