/usr/ is in libubuntuoneauth-2.0-dev 15.11+16.04.20160323.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/
/usr/lib/x86_64-linux-gnu/
/usr/lib/x86_64-linux-gnu/pkgconfig/
/usr/lib/x86_64-linux-gnu/pkgconfig/ubuntuoneauth-2.0.pc
/usr/include/
/usr/include/ubuntuoneauth-2.0/
/usr/include/ubuntuoneauth-2.0/keyring.h
/usr/include/ubuntuoneauth-2.0/token.h
/usr/include/ubuntuoneauth-2.0/logging.h
/usr/include/ubuntuoneauth-2.0/requests.h
/usr/include/ubuntuoneauth-2.0/network.h
/usr/include/ubuntuoneauth-2.0/identityprovider.h
/usr/include/ubuntuoneauth-2.0/responses.h
/usr/include/ubuntuoneauth-2.0/ssoservice.h
/usr/include/ubuntuoneauth-2.0/errormessages.h
/usr/share/
/usr/share/doc/
/usr/share/doc/libubuntuoneauth-2.0-dev/
/usr/share/doc/libubuntuoneauth-2.0-dev/copyright
/usr/lib/x86_64-linux-gnu/libubuntuoneauth-2.0.so
/usr/share/doc/libubuntuoneauth-2.0-dev/changelog.gz