[dovecot/core] 563c1e: systemd.service: Add required attributes

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/dovecot/core
  Commit: 563c1e3b45bbb69bc67b75ff7a899699bea18e88
      https://github.com/dovecot/core/commit/563c1e3b45bbb69bc67b75ff7a899699bea18e88
  Author: Aki Tuomi <aki.tuomi at dovecot.fi>
  Date:   2016-08-19 (Fri, 19 Aug 2016)

  Changed paths:
    M dovecot.service.in

  Log Message:
  -----------
  systemd.service: Add required attributes