/usr/share/doc/network-manager/changelog.Debian.gz is in network-manager 1.10.6-2ubuntu1.1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/network-manager/../libnm0/changelog.Debian.gz
/usr/share/doc/network-manager/../libnm0/changelog.Debian.gz