Comment 3 for bug 1665773

$ for r in xenial-proposed yakkety-proposed; do
  ( mkdir -p $r && cd $r && pull-lp-source cloud-init $r ); done

$ ls -d xenial-proposed/* yakkety-proposed/*
xenial-proposed/cloud-init-0.7.9-90-g61eb03fe
xenial-proposed/cloud-init_0.7.9-90-g61eb03fe-0ubuntu1~16.04.1.debian.tar.xz
xenial-proposed/cloud-init_0.7.9-90-g61eb03fe-0ubuntu1~16.04.1.dsc
xenial-proposed/cloud-init_0.7.9-90-g61eb03fe.orig.tar.gz
yakkety-proposed/cloud-init-0.7.9-90-g61eb03fe
yakkety-proposed/cloud-init_0.7.9-90-g61eb03fe-0ubuntu1~16.10.1.debian.tar.xz
yakkety-proposed/cloud-init_0.7.9-90-g61eb03fe-0ubuntu1~16.10.1.dsc
yakkety-proposed/cloud-init_0.7.9-90-g61eb03fe.orig.tar.gz

$ vi yakkety-proposed/cloud-init*/cloudinit/config/cc_set_passwords.py
$ vi xenial-proposed/cloud-init*/cloudinit/config/cc_set_passwords.py

both have
    chpasswd:
        list: |
            user1:password1
            user2:RANDOM
            user3:password3
            user4:R

    ##
    # or as yaml list
    ##
    chpasswd:
        list:
            - user1:password1
            - user2:RANDOM
            - user3:password3
            - user4:R
            - user4:$6$rL..$ej...