podbrowser(1) on Linux
The text 8b0642e0cee0, as Debian 9 (Stretch), Debian 8 (Jessie), Debian 7 (Wheezy), Debian 6.0 (Squeeze) shipped it. The page shows this text now.
a Perl documentation browser for GNOME PodBrowser is a more feature-complete version of podviewer, which comes with Gtk2::Ex::PodViewer.