/usr/lib/x86_64-linux-gnu/perl5/5.24/Params/ValidatePP.pm is in libparams-validate-perl 1.26-1.
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 | package # hide from PAUSE
Params::Validate;
our $VERSION = '1.26';
BEGIN { $ENV{PARAMS_VALIDATE_IMPLEMENTATION} = 'PP' }
use Params::Validate;
1;
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