Man pages matching name vlock-plugins in section 5:

vlock-plugins.5.en	debian 10 / vlock
vlock-plugins.5.en	debian 11 / vlock
vlock-plugins.5.de	debian 12 / manpages-de
vlock-plugins.5.en	debian 12 / vlock
vlock-plugins.5.de	debian 13 / manpages-de
vlock-plugins.5.ro	debian 13 / manpages-ro
vlock-plugins.5.en	debian 13 / vlock