MFC r280849,280915-280916,281015-281016,282097,282408,282415,283542, 284864,285169-285170,285435:ntp 4.2.8p3.Relnotes: yesApproved by: re (?)
Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.Approved by: re (implicit)Sponsored by: The FreeBSD Foundation
Add forgotten libopts subdir.MFC after: 2 weeks