minor change in idfreader.py
minor change in idfreader.py

pachi/eppy,santoshphilip/eppy,eayoungs/eppy,santoshphilip/eppy,jamiebull1/eppy,eayoungs/eppy,pachi/eppy,santoshphilip/eppy,eayoungs/eppy,jamiebull1/eppy,jamiebull1/eppy,pachi/eppy