Explicitly listing core modules as dependencies has another benefit: CPAN Testers smokeboxes will report the versions of all modules declared as dependencies. While "core only" modules have versions that can be inferred from Perl's version, many modules are now "dual life" and could be updated separately from the Perl core in an installation. Listing them all as dependencies will cause the versions actually used to appear in CPAN test reports.

In reply to Re^5: Why $FIle::Find::prune = 1 returns used only once warning by jcb
in thread Why $FIle::Find::prune = 1 returns used only once error by h2

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