[dovecot/core] d61f31: lib, lib-index: Use #ifdef with WORDS_BIGENDIAN

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/dovecot/core
  Commit: d61f31663f3debf9e49d1e0d8ef3c9fb13aad6c4
      https://github.com/dovecot/core/commit/d61f31663f3debf9e49d1e0d8ef3c9fb13aad6c4
  Author: Martti Rannanjärvi <martti.rannanjarvi at dovecot.fi>
  Date:   2017-10-30 (Mon, 30 Oct 2017)

  Changed paths:
    M src/lib-index/mail-transaction-log-file.c
    M src/lib/byteorder.h
    M src/lib/sha1.c

  Log Message:
  -----------
  lib,lib-index: Use #ifdef with WORDS_BIGENDIAN

Some were missing from the last change.