/usr/ is in cl-photo 0.14-4.
This file is owned by root:root, with mode 0o755.
..
/usr/share/
/usr/share/common-lisp/
/usr/share/common-lisp/source/
/usr/share/common-lisp/source/cl-photo/
/usr/share/common-lisp/source/cl-photo/cl-photo.asd
/usr/share/common-lisp/source/cl-photo/cameras.lisp
/usr/share/common-lisp/source/cl-photo/convert.lisp
/usr/share/common-lisp/source/cl-photo/dof.lisp
/usr/share/common-lisp/source/cl-photo/fov.lisp
/usr/share/common-lisp/source/cl-photo/package.lisp
/usr/share/common-lisp/source/cl-photo/tables.lisp
/usr/share/common-lisp/source/cl-photo/tests.lisp
/usr/share/common-lisp/systems/
/usr/share/doc/
/usr/share/doc/cl-photo/
/usr/share/doc/cl-photo/readme.html
/usr/share/doc/cl-photo/copyright
/usr/share/doc/cl-photo/changelog.Debian.gz
/usr/share/doc-base/
/usr/share/doc-base/cl-photo
/usr/share/common-lisp/systems/cl-photo.asd