undocumented cpan_mirror argument not working on ubuntu/(precise | trusty)

[at3560k]

When you call 'cpan' for the first time to configure it in cpan.pp, you pass a list of answers to the questions to the default exec command.

On a default 'trusty' install (cpan 1.61 perl 5.18.2) 'yes'/'yes' finishes answering the list and it automatically populates mirrors

On a default 'precise' install (cpan 1.57 perl 5.14.2) it needs yes/newline/cpan_mirror/newline

Can you indicate what distribution or version of CPAN this current default answer list works with, or just add an option to drop your own config.pm ?

[alvagante]

You can use the param exec_command to customise the command to launch and the answers.
https://github.com/example42/puppet-perl/blob/master/manifests/cpan.pp#L8

It would be nice though, to have a correct default value for precise here: https://github.com/example42/puppet-perl/blob/master/manifests/cpan.pp#L11

PR welcomed