managedmac::authorization class changing system.preferences.datetime

[dayglojesus]

In 10.10.5 and up, one of the default values in the Authorization database has changed.

This change is not reflected in the defaults for the class and this produces a change even when nothing was configured.

[15:25:52]foo# puppet apply -e 'include managedmac'
Notice: Compiled catalog for foo.bar.com in environment production in 0.41 seconds
Notice: /Stage[main]/Managedmac::Authorization/Macauthdb[system.preferences.datetime]/shared: shared changed 'false' to 'true'
Notice: Finished catalog run in 0.15 seconds

[dayglojesus]

Fix is in develop. Ready for release 3.8.3.