tests: ignore the error location that GNUMake emits
tests: ignore the error location that GNUMake emits

Newer versions of GNUMake emit the error location (file:line) of a
target if it fails. ckati does not implement this functionality. Hence
filter out those from the make log.

This fixes two test cases that are failing because of that difference.

Signed-off-by: Matthias Maennich <9bce818340fa3fdb97f10fe3386d272c8064360e@google.com>

google/kati,google/kati,google/kati,google/kati,google/kati