/usr/share/doc/netcdf-bin/changelog.Debian.gz is in netcdf-bin 1:4.1.3-7ubuntu2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/netcdf-bin/../libnetcdfc7/changelog.Debian.gz
/usr/share/doc/netcdf-bin/../libnetcdfc7/changelog.Debian.gz