[dovecot/core] 57df1c: lib-storage: Fix using BROKENCHAR

[GitHub]

  Branch: refs/heads/master-2.2
  Home:   https://github.com/dovecot/core
  Commit: 57df1c1522b47e69734617536b59b9a995febf5e
      https://github.com/dovecot/core/commit/57df1c1522b47e69734617536b59b9a995febf5e
  Author: Timo Sirainen <timo.sirainen at dovecot.fi>
  Date:   2017-08-02 (Wed, 02 Aug 2017)

  Changed paths:
    M src/lib-storage/mailbox-list.c

  Log Message:
  -----------
  lib-storage: Fix using BROKENCHAR

f3f617e25186daac43833d94b37833f0a43af917 was incorrectly merged from master.