Manpages
ffclock.2, ffclock.4
Updated with respect to FFclock code revisions and terminology, in
particular the three FFclocks natFFC, monoFFC, and diffFFC.
Substantially modified descriptions to provide more detail and insight,
including reference to bpf changes documented in bpf.4 .
Authorship footnotes updated.
File headers
subr_rtc.c
FFclock authorship note removed as no FFclock code remains.
_ffcounter.h, timepps.c
FFclock authorship note amended to include Veitch.
kern_ffclock.c, kern_tc.c, timeff.c
FFclock authorship note amended to include Veitch, and extended to cover FFclock code revisions.
bpf.c, bpf.h
Authorship note added, with reference to origins of work under the 2011 FreeBSD Foundation sponsorship for the FFclock code.