/usr/share/roslaunch/ is in python-roslaunch 1.13.5+ds1-3.
This file is owned by root:root, with mode 0o755.
..
/usr/share/roslaunch/cmake/
/usr/share/roslaunch/cmake/roslaunch-extras.cmake
/usr/share/roslaunch/cmake/roslaunchConfig-version.cmake
/usr/share/roslaunch/cmake/roslaunchConfig.cmake
/usr/share/roslaunch/package.xml
/usr/share/roslaunch/resources/
/usr/share/roslaunch/resources/example-env-substutition.xml
/usr/share/roslaunch/resources/example-gdb.launch
/usr/share/roslaunch/resources/example-include.launch
/usr/share/roslaunch/resources/example-min.launch
/usr/share/roslaunch/resources/example-params.launch
/usr/share/roslaunch/resources/example-ssh.launch
/usr/share/roslaunch/resources/example.launch
/usr/share/roslaunch/resources/roscore.xml
/usr/share/roslaunch/scripts/
/usr/share/roslaunch/scripts/roslaunch-check