Fix NilClass on long paths

When you have matching rules that are long the string matching fails.

    /var/named/chroot/etc(/.*)?                        all files          system_u:object_r:etc_t:s0
    /var/named/chroot/etc/named\.caching-nameserver\.conf regular file           system_u:object_r:named_conf_t:s0
    /var/named/chroot/etc/named\.conf                  regular file       system_u:object_r:named_conf_t:s0

Here's a simple fix for that :). Filetypes don't exceed two words AFAIK.