/usr/share/doc/tcl8.5/changelog.Debian.gz is in tcl8.5 8.5.19-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/tcl8.5/../libtcl8.5/changelog.Debian.gz
/usr/share/doc/tcl8.5/../libtcl8.5/changelog.Debian.gz