Man pages matching name update-openssh-known-hosts in section 8:

update-openssh-known-hosts.8.en	debian 10 / openssh-known-hosts
update-openssh-known-hosts.8.en	debian 11 / openssh-known-hosts
update-openssh-known-hosts.8.de	debian 12 / manpages-de
update-openssh-known-hosts.8.en	debian 12 / openssh-known-hosts