Bug#766767: cpan: Use of uninitialized value $what in concatenation (.) or string at /usr/share/perl/5.20/App/Cpan.pm

[Jakub Wilk]

Package: perl
Version: 5.20.1-2
Severity: minor

I get this warning when using cpan for the first time:

$ cpan

CPAN.pm requires configuration, but most of it can be done automatically.
If you answer 'no' below, you will enter an interactive dialog for each
configuration option instead.

Would you like to configure as much as possible automatically? [yes]

Use of uninitialized value $what in concatenation (.) or string at /usr/share/perl/5.20/App/Cpan.pm line 554, <STDIN> line 1.
 <install_help>

Warning: You do not have write permission for Perl library directories.
...


-- System Information:
Debian Release: jessie/sid
  APT prefers unstable
  APT policy: (990, 'unstable'), (500, 'experimental')
Architecture: i386 (x86_64)
Foreign Architectures: amd64

Kernel: Linux 3.17-1-amd64 (SMP w/2 CPU cores)
Locale: LANG=C, LC_CTYPE=pl_PL.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages perl depends on:
ii  libbz2-1.0    1.0.6-7
ii  libc6         2.19-12
ii  libdb5.3      5.3.28-6
ii  libgdbm3      1.8.3-13
ii  perl-base     5.20.1-2
ii  perl-modules  5.20.1-2
ii  zlib1g        1:1.2.8.dfsg-2

-- 
Jakub Wilk