Some devices have image/urf in document-format-supported, but is missing urf-supported if AirPrint support is turned off, which breaks PPD generation.
Check for attribute urf-supported when we are about to decide whether the printer uses AirPrint, so in case the device supports another driverless standard, we can use it for PPD generation.
Some devices have
image/urfindocument-format-supported, but is missingurf-supportedif AirPrint support is turned off, which breaks PPD generation.Check for attribute
urf-supportedwhen we are about to decide whether the printer uses AirPrint, so in case the device supports another driverless standard, we can use it for PPD generation.Fixes Fedora issue