/usr/share/doc/libcurl4-nss-dev/TODO.gz is in libcurl4-nss-dev 7.22.0-3ubuntu4.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/libcurl4-nss-dev/../libcurl3-nss/TODO.gz
/usr/share/doc/libcurl4-nss-dev/../libcurl3-nss/TODO.gz