This file is indexed.

/usr/share/cups/ppd-updaters/foomatic-db-gutenprint.ppd-updater is in foomatic-db-gutenprint 5.2.10~pre2-0ubuntu2.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

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DRIVER_REGEXP='^foomatic:\S*-gutenprint-ijs'
GENNICKNAME_REGEXP='s/\.[\d\.]*(|-pre\d+)$//; s/ LF / Large Format /; s/-simplified//i'