/usr/share/cups/ppd-updaters/printer-driver-c2esp.ppd-updater is in printer-driver-c2esp 27-4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 | DRIVER_REGEXP='drv:///c2espC?.drv/'
GENNICKNAME_REGEXP=''
|