/usr/share/perl5/Protocol/ACME/Challenge.pm is in libprotocol-acme-perl 1.01-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 | package Protocol::ACME::Challenge;
use strict;
use warnings;
=head1 NAME
Protocol::ACME::Challenge - Empty base class for ACME Challenges
=cut
our $VERSION = '1.01';
1;
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