/usr/share/man/man1/aarch64-linux-gnu-nm.1.gz is in binutils-aarch64-linux-gnu 2.26.1-1ubuntu1~16.04.8.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/man/man1/nm.1.gz
/usr/share/man/man1/nm.1.gz