Sam Minnee 0fc06e51e5 FIX: Drop seconds from DBDatetime::Nice() to restore SS3 behaviour.
Note that the medium date format depends on locale, with en_NZ being
resolutely numeric. I’ve updated the test to verify a couple of locales
to make this more obvious.

Fixes #8121
2018-10-04 14:51:24 +13:00
..
2017-06-28 18:59:08 +01:00
2018-07-13 16:44:23 +01:00
2018-01-16 18:39:30 +00:00
2017-10-10 10:13:26 +13:00