code: public LogWatchBuilder withDelayBetweenSweeps(final int length, final TimeUnit unit) {
          this.delayBetweenSweeps = LogWatchBuilder.getDelay(length, unit);
          return this;
      }
docs: Specify the delay between attempts to sweep the log watch from
  unreachable messages.
  
  @param length
  Length of time.
  @param unit
  Unit of that length.
  @return This.