Fedora has merged /usr/bin and /bin while Debian uses distinct directories for /usr/bin and /bin. Debian also uses different directory for libexec files. A new paths.check_paths() helper makes it easier to detect missing or wrong paths. Signed-off-by: Christian Heimes <cheimes@redhat.com> Reviewed-By: Alexander Bokovoy <abokovoy@redhat.com>