Yup that is a '79 It is not unusual that people mistake '79 and '80 pintos all the time, there is very little difference. There were several colors only available in either year. The V6 was dropped for 1980. But the only visual difference is the rubber bumper pads at the ends of the front and rear bumpers (the '79's were smooth '80's had grooves). Even Ford was confused, if you look closely at the orange car on the cover of the dealer brochure you will see smooth (1979) bumper ends. ..............
..of course it could be an '80 with '79 bumpers?? Sorry for adding more useless info.