Bug#947768: pppconfig fails with error $* is no longer supported as of Perl 5.30

[manul <manul91@abv.bg>]

Package: pppconfig
Version: 2.3.23
Severity: important

Dear Maintainer,

The pppconfig script (/usr/sbin/pppconfig) fails with error

$* is no longer supported as of Perl 5.30 at /usr/sbin/pppconfig line 1619

This happens when running pppconfig, and using the following venue in the interactive menus:
- Create a connection
- Select connection name
- Use "Static DNS"
- Enter primary nameserver
- Enter secondary nameserver
- Use "CHAP" protocol

and here it fails with the above error (without creating anything).

Yours,

manul

-- System Information:
Debian Release: bullseye/sid
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: amd64 (x86_64)

Kernel: Linux 5.4.0-1-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE= (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages pppconfig depends on:
ii  init-system-helpers  1.57
ii  ppp                  2.4.7-2+4.1+b1
ii  whiptail             0.52.21-4

pppconfig recommends no packages.

Versions of packages pppconfig suggests:
pn  resolvconf  <none>

-- Configuration Files:
/etc/ppp/ip-up.d/0dns-up changed [not included]

-- no debconf information