policycoreutils: sandbox: make sure the domain

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

This patch looks good to me. acked.

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.11 (GNU/Linux)
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/

iEYEARECAAYFAk7dHI8ACgkQrlYvE4MpobPvsACgwBnbAlHTop2MK2K8ybmfdQOg xTgAn2OdXyzq2YtQ3DW+GnZSs3YnQ2Ic
=a0Du
-----END PGP SIGNATURE-----