The set_sudo expansion test should be improved as follows:

• Turn off verbose & errexit
• Print user and if sudo has been granted
• Reset verbose & errexit settings

         - key: set_sudo
           value: |
            # Set verbose to "off".
            set -o | grep verbose | grep on
            verbose_on=$?
            set +o verbose
            # Set errexit "off".
            set -o | grep errexit | grep on
            errexit_on=$?
            set +o errexit
            sudo=
            sudo date > /dev/null 2>&1
            ret=$?
            if [ $ret -eq 0 ]; then
              sudo=sudo
              echo "User $(whoami) has sudo privileges"
            else
              echo "User $(whoami) does not have sudo privileges"
            fi
            # Set errexit "on", if previously enabled.
            if [ $errexit_on -eq 0 ]; then
              set -o errexit
            fi
            # Set verbose "on", if previously enabled.
            if [ $verbose_on -eq 0 ]; then
              set -o verbose
            fi