Bug#758287: apt-show-versions: Warning "keys on reference is experimental" with Perl 5.20

[Axel Beckert <abe@debian.org>]

Package: apt-show-versions
Version: 0.22.3
User: debian-perl@lists.debian.org
Usertags: perl-5.20-transition

Hi,

since Perl 5.20, apt-show-versions throws the following Perl warnings
upon each invocation:

$ apt-show-versions > /dev/null
keys on reference is experimental at /usr/bin/apt-show-versions line 264.
keys on reference is experimental at /usr/bin/apt-show-versions line 359.
$

According to
http://perldoc.perl.org/perldiag.html#keys-on-reference-is-experimental
this feature "may change or be removed in a future Perl version", hence
the severity of this bug report may be raised to RC in the future.

See http://perldoc.perl.org/perldelta.html#New-Warnings for reasoning
and background.

-- System Information:
Debian Release: jessie/sid
  APT prefers unstable
  APT policy: (990, 'unstable'), (600, 'testing'), (400, 'stable'), (110, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 3.15-trunk-amd64 (SMP w/1 CPU core)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages apt-show-versions depends on:
ii  apt                      1.0.6
ii  libapt-pkg-perl          0.1.29+b2
ii  perl [libstorable-perl]  5.20.0-4

apt-show-versions recommends no packages.

apt-show-versions suggests no packages.

-- no debconf information