Replace usleep with nanosleep.  Posix defines usleep to work only for values of less than a second.  Linux accepts larger values but NetBSD doesn't.
Replace usleep with nanosleep.  Posix defines usleep to work only for values of less
than a second.  Linux accepts larger values but NetBSD doesn't.

polyml/polyml,dcjm/polyml,polyml/polyml,polyml/polyml,dcjm/polyml,polyml/polyml,dcjm/polyml,dcjm/polyml