message: Sort with ss58 prefix
diff: // This software may be modified and distributed under the terms
  // of the Apache-2.0 license. See the LICENSE file for details.
  +import { Prefix } from './types';
  +
  import { u8aSorted } from '@polkadot/util';
  import decodeAddress from './decode';
  import encodeAddress from './encode';
  -export default function sortAddresses (addresses: (Uint8Array | string)[]): string[] {
  +export default function sortAddresses (addresses: (Uint8Array | string)[], ss58Format?: Prefix): string[] {
  return u8aSorted(
  addresses.map((who) => decodeAddress(who))
  - ).map((u8a) => encodeAddress(u8a));
  + ).map((u8a) => encodeAddress(u8a, ss58Format));
  }
  