Label validator function has been left behind, although it's not
checking for anything right now - might be useful in future.
Change-Id: I74c744dc957d73aef7556aff00837611dadbada7
There is a default policy for that in Fedora, however it doesn't
work in Atomic since /usr/local is a symlink to /var/usrlocal
Closes-Bug: 1646421
Change-Id: I4c5b836f4f76ff93a2c55f85ff6ff0cbe990bcff