Subject: | Sanity check values before doing ->isa on them |
This is probably not the most graceful way to fail:
$ perl -MModule::CoreList -E 'say
Module::CoreList::first_release(q[])'
Can't call method "isa" without a package or object reference at
/home/v-perlbrew/perl5/perlbrew/perls/perl-
5.13.2/lib/5.13.2/Module/CoreList.pm line 213.