Log Message:
Minimally invasive fix for CVE-2014-4330, also known as
https://www.lsexperts.de/advisories/lse-2014-06-10.txt,
a stack overflow vulnerability in Data::Dumper

Patches taken from
http://perl5.git.perl.org/perl.git/commitdiff/19be3be6968e2337bcdfe480693fff795ecd1304,
to be removed when updating to 5.20.1 (or later).

perl-5.20.0nb2 is fit for pkg_add -u replacement of perl-5.20.0nb1