/usr/ is in libqapt-dev 3.0.2-0ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/x86_64-linux-gnu/cmake/QApt/
/usr/lib/
/usr/lib/x86_64-linux-gnu/
/usr/lib/x86_64-linux-gnu/pkgconfig/
/usr/lib/x86_64-linux-gnu/pkgconfig/libqapt.pc
/usr/lib/x86_64-linux-gnu/cmake/
/usr/lib/x86_64-linux-gnu/cmake/QApt/QAptConfigVersion.cmake
/usr/lib/x86_64-linux-gnu/cmake/QApt/QAptConfig.cmake
/usr/lib/x86_64-linux-gnu/cmake/QApt/QAptTargets.cmake
/usr/lib/x86_64-linux-gnu/cmake/QApt/QAptTargets-debian.cmake
/usr/lib/x86_64-linux-gnu/qt5/
/usr/lib/x86_64-linux-gnu/qt5/mkspecs/
/usr/lib/x86_64-linux-gnu/qt5/mkspecs/modules/
/usr/lib/x86_64-linux-gnu/qt5/mkspecs/modules/qt_QApt.pri
/usr/include/
/usr/include/QApt/
/usr/include/QApt/SourcesList
/usr/include/QApt/DependencyInfo
/usr/include/QApt/Changelog
/usr/include/QApt/Config
/usr/include/QApt/DebFile
/usr/include/QApt/Package
/usr/include/QApt/SourceEntry
/usr/include/QApt/MarkingErrorInfo
/usr/include/QApt/Backend
/usr/include/QApt/History
/usr/include/QApt/Globals
/usr/include/QApt/DownloadProgress
/usr/include/QApt/Transaction
/usr/include/qapt/
/usr/include/qapt/globals.h
/usr/include/qapt/markingerrorinfo.h
/usr/include/qapt/sourceentry.h
/usr/include/qapt/downloadprogress.h
/usr/include/qapt/changelog.h
/usr/include/qapt/history.h
/usr/include/qapt/qaptversion.h
/usr/include/qapt/sourceslist.h
/usr/include/qapt/config.h
/usr/include/qapt/backend.h
/usr/include/qapt/debfile.h
/usr/include/qapt/transaction.h
/usr/include/qapt/package.h
/usr/include/qapt/dependencyinfo.h
/usr/share/
/usr/share/doc/
/usr/share/doc/libqapt-dev/
/usr/share/doc/libqapt-dev/copyright
/usr/lib/x86_64-linux-gnu/libQApt.so
/usr/share/doc/libqapt-dev/changelog.Debian.gz