/usr/share/common-lisp/ros/nav_msgs/msg/_package_GetMapFeedback.lisp is in cl-nav-msgs 1.12.5-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 | (cl:in-package nav_msgs-msg)
(cl:export '())
|