[dovecot/core] 4adefd: quota: Fix NetBSD build.

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/dovecot/core
  Commit: 4adefdb40c7ffcac3d8f8279cdf52d9f72d39636
      https://github.com/dovecot/core/commit/4adefdb40c7ffcac3d8f8279cdf52d9f72d39636
  Author: Teemu Huovila <teemu.huovila at dovecot.fi>
  Date:   2016-03-31 (Thu, 31 Mar 2016)

  Changed paths:
    M src/plugins/quota/quota-fs.c

  Log Message:
  -----------
  quota: Fix NetBSD build.