[Purdue-pm] to go from Perl 5.34 to 5.40

[Mark Senn]

To go from Perl 5.34 to 5.40 I changed (not all changes shown)
use File::Slurp;   # for read_file
to
use File::Slurper 'read_text';  # for read_text
and given/when to if/elsif/else.  Thanks gizmo for Slurper hint.

Raku (formerly known as Perl 6)'s given/when works fine as
far as I know.  Raku has lots more features than Perl.
I use it for all my personal programming Perl-like projects.

-mark