By default, all sudo commands are logged to auth.log with their
full command line. Previously, Shipyard scripts called 'sudo docker'
with -e OS_PASSWORD=foo, resulting in the password value appearing
in auth.log in plaintext. This change adds -E to the sudo command
to pass the user's environment through, and removes the value from
-e OS_PASSWORD which tells Docker to use the environment value
directly. This prevents the password value from being logged.
Change-Id: Ifcf7f6525876144a609ff42be42da57a3f7f6f60
0ab1bf552d