/usr/ is in libnav-msgs-dev 1.12.5-3.
This file is owned by root:root, with mode 0o755.
..
/usr/include/
/usr/include/nav_msgs/
/usr/include/nav_msgs/GetMap.h
/usr/include/nav_msgs/GetMapAction.h
/usr/include/nav_msgs/GetMapActionFeedback.h
/usr/include/nav_msgs/GetMapActionGoal.h
/usr/include/nav_msgs/GetMapActionResult.h
/usr/include/nav_msgs/GetMapFeedback.h
/usr/include/nav_msgs/GetMapGoal.h
/usr/include/nav_msgs/GetMapRequest.h
/usr/include/nav_msgs/GetMapResponse.h
/usr/include/nav_msgs/GetMapResult.h
/usr/include/nav_msgs/GetPlan.h
/usr/include/nav_msgs/GetPlanRequest.h
/usr/include/nav_msgs/GetPlanResponse.h
/usr/include/nav_msgs/GridCells.h
/usr/include/nav_msgs/MapMetaData.h
/usr/include/nav_msgs/OccupancyGrid.h
/usr/include/nav_msgs/Odometry.h
/usr/include/nav_msgs/Path.h
/usr/include/nav_msgs/SetMap.h
/usr/include/nav_msgs/SetMapRequest.h
/usr/include/nav_msgs/SetMapResponse.h
/usr/lib/
/usr/lib/pkgconfig/
/usr/lib/pkgconfig/nav_msgs.pc
/usr/share/
/usr/share/doc/
/usr/share/doc/libnav-msgs-dev/
/usr/share/doc/libnav-msgs-dev/copyright
/usr/share/nav_msgs/
/usr/share/nav_msgs/cmake/
/usr/share/nav_msgs/cmake/nav_msgs-msg-extras.cmake
/usr/share/nav_msgs/cmake/nav_msgs-msg-paths.cmake
/usr/share/nav_msgs/cmake/nav_msgsConfig-version.cmake
/usr/share/nav_msgs/cmake/nav_msgsConfig.cmake
/usr/share/nav_msgs/package.xml
/usr/share/doc/libnav-msgs-dev/changelog.Debian.gz