/usr/share/man/man3/hwloc_cpuset_from_linux_libnuma_nodemask.3.gz is in libhwloc-doc 1.3.1-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/man/man3/hwlocality_linux_libnuma_nodemask.3.gz
/usr/share/man/man3/hwlocality_linux_libnuma_nodemask.3.gz