/usr/ is in cl-plus-ssl 20151218-2.
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+ssl/
/usr/share/common-lisp/source/cl+ssl/cl+ssl.asd
/usr/share/common-lisp/source/cl+ssl/src/
/usr/share/common-lisp/source/cl+ssl/src/context.lisp
/usr/share/common-lisp/source/cl+ssl/src/ffi-buffer-clisp.lisp
/usr/share/common-lisp/source/cl+ssl/src/ffi-buffer-all.lisp
/usr/share/common-lisp/systems/cl+ssl.asd
/usr/share/common-lisp/source/cl+ssl/src/ffi.lisp
/usr/share/common-lisp/source/cl+ssl/src/reload.lisp
/usr/share/common-lisp/source/cl+ssl/src/bio.lisp
/usr/share/common-lisp/source/cl+ssl/src/streams.lisp
/usr/share/common-lisp/source/cl+ssl/src/conditions.lisp
/usr/share/common-lisp/source/cl+ssl/src/random.lisp
/usr/share/common-lisp/source/cl+ssl/src/package.lisp
/usr/share/common-lisp/source/cl+ssl/src/ffi-buffer.lisp
/usr/share/common-lisp/systems/
/usr/share/lintian/
/usr/share/lintian/overrides/
/usr/share/lintian/overrides/cl-plus-ssl
/usr/share/doc/
/usr/share/doc/cl-plus-ssl/
/usr/share/doc/cl-plus-ssl/copyright
/usr/share/doc/cl-plus-ssl/index.html
/usr/share/doc/cl-plus-ssl/changelog.Debian.gz
/usr/share/doc/cl-plus-ssl/index.css