/usr/ is in cl-command-line-arguments 20151218-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/
/usr/share/common-lisp/
/usr/share/common-lisp/systems/
/usr/share/common-lisp/source/
/usr/share/common-lisp/source/command-line-arguments/
/usr/share/common-lisp/source/command-line-arguments/command-line-arguments.asd
/usr/share/common-lisp/source/command-line-arguments/parse.lisp
/usr/share/common-lisp/source/command-line-arguments/test.lisp
/usr/share/common-lisp/source/command-line-arguments/pkgdcl.lisp
/usr/share/common-lisp/source/command-line-arguments/argv.lisp
/usr/share/common-lisp/source/command-line-arguments/help.lisp
/usr/share/doc/
/usr/share/doc/cl-command-line-arguments/
/usr/share/doc/cl-command-line-arguments/copyright
/usr/share/doc/cl-command-line-arguments/README.md
/usr/share/doc/cl-command-line-arguments/changelog.Debian.gz
/usr/share/common-lisp/systems/command-line-arguments.asd