/usr/ is in diaspora-common 0.7.3.1+debian2ubuntu2.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/
/usr/lib/diaspora-common/
/usr/lib/diaspora-common/scripts/
/usr/lib/diaspora-common/scripts/adduser.sh
/usr/lib/diaspora-common/scripts/diaspora-download.sh
/usr/lib/diaspora-common/scripts/diaspora-versions.sh
/usr/lib/diaspora-common/scripts/grantpriv.sh
/usr/lib/diaspora-common/scripts/initdb.sh
/usr/lib/diaspora-common/scripts/rake-tasks.sh
/usr/lib/diaspora-common/scripts/set-env-diaspora.sh
/usr/lib/diaspora-common/scripts/set-env-nginx.sh
/usr/lib/diaspora-common/sha256sums
/usr/lib/tmpfiles.d/
/usr/lib/tmpfiles.d/diaspora.conf
/usr/share/
/usr/share/diaspora/
/usr/share/diaspora/app/
/usr/share/diaspora/config/
/usr/share/diaspora-common/
/usr/share/diaspora-common/database.yml
/usr/share/diaspora-common/diaspora.conf
/usr/share/diaspora-common/nginx.conf.example
/usr/share/diaspora-common/nginx.conf.nohttps.example
/usr/share/doc/
/usr/share/doc/diaspora-common/
/usr/share/doc/diaspora-common/README
/usr/share/doc/diaspora-common/changelog.gz
/usr/share/doc/diaspora-common/copyright
/usr/share/diaspora/.bundle
/usr/share/diaspora/Gemfile.lock
/usr/share/diaspora/app/assets
/usr/share/diaspora/config/oidc_key.pem
/usr/share/diaspora/log
/usr/share/diaspora/public
/usr/share/diaspora/tmp