Header file update
Detail: Update sys/time.h from FreeBSD revision 18397 (around revision 8.5, circa 1995, in RCS terms). Principally this is for struct timespec so it is aligned with ISO9899:2011.
Detail: Update sys/time.h from FreeBSD revision 18397 (around revision 8.5, circa 1995, in RCS terms). Principally this is for struct timespec so it is aligned with ISO9899:2011.