/usr/lib/perl5/ is in libdevel-cover-perl 0.77-1ubuntu3.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/perl5/Devel/
/usr/lib/perl5/Devel/Cover/
/usr/lib/perl5/Devel/Cover.pm
/usr/lib/perl5/Devel/Cover/Annotation/
/usr/lib/perl5/Devel/Cover/Annotation/Git.pm
/usr/lib/perl5/Devel/Cover/Annotation/Random.pm
/usr/lib/perl5/Devel/Cover/Annotation/Svk.pm
/usr/lib/perl5/Devel/Cover/Branch.pm
/usr/lib/perl5/Devel/Cover/Condition.pm
/usr/lib/perl5/Devel/Cover/Condition_and_2.pm
/usr/lib/perl5/Devel/Cover/Condition_and_3.pm
/usr/lib/perl5/Devel/Cover/Condition_or_2.pm
/usr/lib/perl5/Devel/Cover/Condition_or_3.pm
/usr/lib/perl5/Devel/Cover/Condition_xor_4.pm
/usr/lib/perl5/Devel/Cover/Criterion.pm
/usr/lib/perl5/Devel/Cover/DB/
/usr/lib/perl5/Devel/Cover/DB.pm
/usr/lib/perl5/Devel/Cover/DB/Digests.pm
/usr/lib/perl5/Devel/Cover/DB/File.pm
/usr/lib/perl5/Devel/Cover/DB/IO/
/usr/lib/perl5/Devel/Cover/DB/IO.pm
/usr/lib/perl5/Devel/Cover/DB/IO/JSON.pm
/usr/lib/perl5/Devel/Cover/DB/IO/Storable.pm
/usr/lib/perl5/Devel/Cover/DB/Structure.pm
/usr/lib/perl5/Devel/Cover/Inc.pm
/usr/lib/perl5/Devel/Cover/Op.pm
/usr/lib/perl5/Devel/Cover/Pod.pm
/usr/lib/perl5/Devel/Cover/Report/
/usr/lib/perl5/Devel/Cover/Report/Compilation.pm
/usr/lib/perl5/Devel/Cover/Report/Html.pm
/usr/lib/perl5/Devel/Cover/Report/Html_basic.pm
/usr/lib/perl5/Devel/Cover/Report/Html_minimal.pm
/usr/lib/perl5/Devel/Cover/Report/Html_subtle.pm
/usr/lib/perl5/Devel/Cover/Report/Sort.pm
/usr/lib/perl5/Devel/Cover/Report/Text.pm
/usr/lib/perl5/Devel/Cover/Report/Text2.pm
/usr/lib/perl5/Devel/Cover/Statement.pm
/usr/lib/perl5/Devel/Cover/Subroutine.pm
/usr/lib/perl5/Devel/Cover/Test.pm
/usr/lib/perl5/Devel/Cover/Time.pm
/usr/lib/perl5/Devel/Cover/Truth_Table.pm
/usr/lib/perl5/Devel/Cover/Tutorial.pod
/usr/lib/perl5/Devel/Cover/Web.pm
/usr/lib/perl5/auto/
/usr/lib/perl5/auto/Devel/
/usr/lib/perl5/auto/Devel/Cover/
/usr/lib/perl5/auto/Devel/Cover/Cover.bs
/usr/lib/perl5/auto/Devel/Cover/Cover.so