def dest_desc(metric, condition)
      if condition.transition
        {true => condition.transition}.inspect
      else
        if metric.destination
          metric.destination.inspect
        else
          'none'
        end
      end
    end
def dest_desc(metric, condition)
      if condition.transition
        {true => condition.transition}.inspect
      else
        if metric.destination
          metric.destination.inspect
        else
          'none'
        end
      end
    end
Format the destination specification for use in debug logging.

 metric    - The Metric.
 condition - The Condition.

 Returns the formatted String.