/usr/share/man/de/man2/gtty.2.gz is in manpages-de-dev 1.11-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/man/de/man2/unimplemented.2.gz
/usr/share/man/de/man2/unimplemented.2.gz