Update copyright year to 2019
When logging in to 11.2-RC2 via SSH, I'm greeted by the /etc/motd.
The copyright notice only goes to 2017. Is this intentional?
login as: root email@example.com's password: Last login: Sun Nov 25 21:54:31 2018 from 192.168.0.101 FreeBSD 11.2-STABLE (FreeNAS.amd64) #0 r325575+3a9793238ff(freenas/11.2-stable): Thu Nov 15 13:51:02 EST 2018 FreeNAS (c) 2009-2017, The FreeNAS Development Team All rights reserved. FreeNAS is released under the modified BSD license. For more information, documentation, help or support, go here: http://freenas.org Welcome to FreeNAS Warning: settings changed through the CLI are not written to the configuration database and will be reset on reboot.
fix(motd): bump year in copyright
(cherry picked from commit 9d5dad4c6566e65422ed2cf5cae5ca483714341a)