[dovecot/core] e43979: man: Add more complete description of one-way sync

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/dovecot/core
  Commit: e43979fa09dc4a8eb774cb5476edd71544d39e44
      https://github.com/dovecot/core/commit/e43979fa09dc4a8eb774cb5476edd71544d39e44
  Author: Michael Slusarz <michael.slusarz at dovecot.fi>
  Date:   2016-04-27 (Wed, 27 Apr 2016)

  Changed paths:
    M doc/man/doveadm-sync.1.in

  Log Message:
  -----------
  man: Add more complete description of one-way sync