[DATA] QTR57 / QTR58

**Url of request**
https://api.adsbdb.com/v0/callsign/QTR57
https://api.adsbdb.com/v0/callsign/QTR58

**Why was the data wrong**
For both: `DOH` is correct. `BER` is wrong, instead `MUC` is correct.

**Source of information**
https://www.flightaware.com/live/flight/QTR57
https://www.flightaware.com/live/flight/QTR58
