/usr/share/man/man3/lqr_carver_bias_add_area.3.gz is in liblqr-1-0-dev 0.4.1-1.1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/man/man3/lqr_carver_bias_add_xy.3.gz
/usr/share/man/man3/lqr_carver_bias_add_xy.3.gz