/usr/share/man/man8/fsck.msdos.8.gz is in dosfstools 3.0.28-2ubuntu0.1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/man/man8/fsck.fat.8.gz
/usr/share/man/man8/fsck.fat.8.gz