/usr/ is in libkf5sane-dev 17.12.3-0ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/include/
/usr/include/KF5/
/usr/include/KF5/KSane/
/usr/include/KF5/KSane/KSaneWidget
/usr/include/KF5/KSane/ksane_export.h
/usr/include/KF5/KSane/ksanewidget.h
/usr/include/KF5/ksane_version.h
/usr/lib/
/usr/lib/x86_64-linux-gnu/
/usr/lib/x86_64-linux-gnu/cmake/
/usr/lib/x86_64-linux-gnu/cmake/KF5Sane/
/usr/lib/x86_64-linux-gnu/cmake/KF5Sane/KF5SaneConfig.cmake
/usr/lib/x86_64-linux-gnu/cmake/KF5Sane/KF5SaneConfigVersion.cmake
/usr/lib/x86_64-linux-gnu/cmake/KF5Sane/KF5SaneTargets-debian.cmake
/usr/lib/x86_64-linux-gnu/cmake/KF5Sane/KF5SaneTargets.cmake
/usr/share/
/usr/share/doc/
/usr/share/doc/libkf5sane-dev/
/usr/share/doc/libkf5sane-dev/copyright
/usr/lib/x86_64-linux-gnu/libKF5Sane.so
/usr/share/doc/libkf5sane-dev/changelog.Debian.gz