You did not pass --site, which will analyze the current folder. --site will analyze perl5's site_perl. In my perl-5.28.0 I have 2118 modules installed, resulting in 12151 .pm files and 900 .pl files with a total of over 5 million lines. That'll take a while to complete.

I Forgot to mention that I also ran into that File::Edit::Portable issue, and I changed that line to

    $sep = unpack "H*", $sep // "";
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just to see how far I could get.

$ find site_perl/5.28.0 -name \*.pm | wc -l
11735

$ find site_perl/5.28.0 -name \*.pl | wc -l
900

$ find site_perl/5.28.0 -name \*.p[lm] | xargs cat | wc -l
5246249

$ perl -nE'/^=head2.*L<(.*?)\|/ and$x{$1}++;END{say scalar keys %x}' 5
+.28.0/x86_64-linux-thread-multi-ld/perllocal.pod
1483
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