DHTDigitalSensor.js getHeatIndex errors in npm v 2.1.0

After installing v 2.1.0 i am getting error that h is not defined.
Looking into module sources DHTDigitalSensor.js function getHeatIndex has variable h which is not defined:

// adjustment
      if (h < 13 && temp <= 112) {
          heatIndex = heatIndexBase - (13 - hum) / 4 * Math.sqrt((17 - Math.abs(temp - 95)) / 17);
      } else if (h > 85 && temp <= 87) {
          heatIndex = heatIndexBase + ((hum - 85) / 10) * ((87 - temp) / 5)
      } else {
          heatIndex = heatIndexBase;
      }.

I think intent was to use function parameter hum instead of h.

The error is reported in DHTDigitalSensor.js, in the getHeatIndex function shipped with npm v2.1.0. Start by checking the adjustment conditions and confirm the undefined variable reference; done means the function no longer raises the reported error and uses the intended humidity value.