http://qs321.pair.com?node_id=452506


in reply to Re^2: Is there a module which Perl has to load when using any module?
in thread Is there a module which Perl has to load when using any module?

Brilliant. Can I suggest sorting for readability: 
END {
  print STDERR "Modules used:\n", map { "  $_\n" } sort values %INC;
}

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