Bug#1040224: cdebconf: confmodule cannot be sourced by scripts that use `set -u`

[Gioele Barabucci <gioele@svario.it>]

Package: cdebconf
Version: 0.270
Tags: patch

Dear cdebconf maintainers,

cdebconf's `confmodule` cannot be sourced by scripts that turned on 
strict variable handling via `set -u`, similarly to what is reported in 
#369953 for classic debconf.

A patch to fix this this problem can be found at 
https://salsa.debian.org/installer-team/cdebconf/-/merge_requests/21
(extracted from 
https://salsa.debian.org/installer-team/cdebconf/-/merge_requests/19).

Regards

--
Gioele Barabucci