[Bug 2117550] [NEW] libdpkg-perl Dpkg::Changelog::Debian.pm imports Dpkg::Changelog with unsupported import list

[Todd Rinaldo]

Public bug reported:

Package: libdpkg-perl
Version: 1.20.12 (or current on Ubuntu 22.04)
Perl version: 5.42.0 (development/testing)

The file /usr/share/perl5/Dpkg/Changelog/Debian.pm contains the
following line:

    use Dpkg::Changelog qw(:util);

However, Dpkg::Changelog does not support any import list, and this
causes a failure under Perl 5.42.0 due to stricter import behavior.

This breaks any tooling that relies on libdpkg-perl with newer versions
of Perl. Given the import does nothing, it should be perfectly safe to
remove.

Suggested fix:
```diff
-use Dpkg::Changelog qw(:util);
+use Dpkg::Changelog;

** Affects: dpkg (Ubuntu)
     Importance: Undecided
         Status: New

** Patch added: "ChangelogDebian.patch"
   https://bugs.launchpad.net/bugs/2117550/+attachment/5892475/+files/ChangelogDebian.patch

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https://bugs.launchpad.net/bugs/2117550

Title:
  libdpkg-perl Dpkg::Changelog::Debian.pm imports Dpkg::Changelog with
  unsupported import list

Status in dpkg package in Ubuntu:
  New

Bug description:
  Package: libdpkg-perl
  Version: 1.20.12 (or current on Ubuntu 22.04)
  Perl version: 5.42.0 (development/testing)

  The file /usr/share/perl5/Dpkg/Changelog/Debian.pm contains the
  following line:

      use Dpkg::Changelog qw(:util);

  However, Dpkg::Changelog does not support any import list, and this
  causes a failure under Perl 5.42.0 due to stricter import behavior.

  This breaks any tooling that relies on libdpkg-perl with newer
  versions of Perl. Given the import does nothing, it should be
  perfectly safe to remove.

  Suggested fix:
  ```diff
  -use Dpkg::Changelog qw(:util);
  +use Dpkg::Changelog;

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