[dovecot/core] 26b297: lib-mail: Fix include guards for istream-nonuls.h

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/dovecot/core
  Commit: 26b297dfc7b7e3ed1f79877c616018a16331b900
      https://github.com/dovecot/core/commit/26b297dfc7b7e3ed1f79877c616018a16331b900
  Author: Sergey Kitov <sergey.kitov at open-xchange.com>
  Date:   2018-04-06 (Fri, 06 Apr 2018)

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

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