[LEDE-DEV] Leap second inserted 2017-01-31 23:59:60

[George Spelvin]

A nice rare bug:
[50481.486275] Clock: inserting leap second 23:59:60 UTC

That was correct at the end of December.  Not January!

This is 17.01.0-rc1, r3042-ec095b5 on a WNDR3800.

The timestamp and my uptime are consistent with the leap second
happending at the end of January.

I suspect it's the busybox ntpd that has the bug, but it's part of the
-rc1 image.