Have you noticed that the corelist utility (from Module-CoreList-2.05 distribution) now accepts regexes as arguments?
You may say
$ corelist /Data::/
And you get
Data::Dumper was first released with perl 5.005
Obviously, it is on CPAN:
http://search.cpan.org/user/rgarcia/Module-CoreList-2.05/
And Rafael has just upgraded the module in blead as well.
http://www.nntp.perl.org/group/perl.perl5.changes/16163
