/usr/lib/perl5/Gtk2/Unique/index.pod is in libgtk2-unique-perl 0.05-1build2.
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 17 | =head1 NAME
Gtk2::Unique - API Reference Pod Index
=head1 PAGES
=over
=item L<Gtk2::Unique>
=item L<Gtk2::UniqueApp>
=item L<Gtk2::UniqueBackend>
=item L<Gtk2::UniqueMessageData>
=back
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