Various cleanups: threads, STA_NANO

[Matthew Selsky]

On Wed, Jan 23, 2019 at 01:36:33AM -0800, Hal Murray wrote:
> 
> esr at thyrsus.com said:
> > In particular, some of our targets (some BSDs, I don't remember which) have
> > only microsecond, not nanosecond resolution in the clock-adjustment calls. 
> 
> NetBSD and FreeBSD have NANO.
> 
> Matthew Selsky suggested Solaris.  Can anybody confirm that?
> Anybody know of others?

I think we covered this in https://gitlab.com/NTPsec/ntpsec/issues/421