Ah, found it with man perlver. Use the --blame option to see the limiting code.

$PM = "Perl Monk's";
$MCF = "Most Clueless Friar Abbot Bishop Pontiff Deacon Curate Priest Vicar";
$nysus = $PM . ' ' . $MCF;
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In reply to Re: How to determine what code is limiting needed perl version for a module by nysus
in thread How to determine what code is limiting needed perl version for a module by nysus

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