/usr/share/doc/libgts-bin/changelog.Debian.gz is in libgts-bin 0.7.6+darcs121130-4.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/libgts-bin/../libgts-0.7-5/changelog.Debian.gz
/usr/share/doc/libgts-bin/../libgts-0.7-5/changelog.Debian.gz