[dovecot/core] 3341cf: lib-mail: Fix include guards for istream-nonuls.h

[GitHub]

  Branch: refs/heads/master-2.3
  Home:   https://github.com/dovecot/core
  Commit: 3341cfd972ffadde7f755ee9e55851360085b9c0
      https://github.com/dovecot/core/commit/3341cfd972ffadde7f755ee9e55851360085b9c0
  Author: Sergey Kitov <sergey.kitov at open-xchange.com>
  Date:   2018-04-16 (Mon, 16 Apr 2018)

  Changed paths:
    M src/lib-mail/istream-nonuls.h

  Log Message:
  -----------
  lib-mail: Fix include guards for istream-nonuls.h