Man pages matching name xferlog in section 5:

xferlog.5.ja	debian 10 / manpages-ja
xferlog.5.en	debian 10 / proftpd-basic
xferlog.5.ja	debian 11 / manpages-ja
xferlog.5.en	debian 11 / proftpd-core
xferlog.5.ja	debian 12 / manpages-ja
xferlog.5.en	debian 12 / proftpd-core