MFC r270289:

MFC r270289:
Change file permissions for some setuid executables so they are "o+r".
The executable itself doesn't contain any privileged information.

An example of where this is useful is when makefs(8) is creating an image
that includes /sbin/shutdown. This can now be done without root privileges.

git-svn-id: svn://svn.freebsd.org/base/stable/10@271075 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f