factor::miller_rabin: Add missing copyright header in source file
+// * This file is part of the uutils coreutils package.
+// *
+// * (c) 2020 nicoo <nicoo@debian.org>
+// *
+// * For the full copyright and license information, please view the LICENSE file
+// * that was distributed with this source code.
+
// spell-checker:ignore (URL) appspot
use crate::numeric::*;
