If you use the original filename in the report, the test output will change every time it runs in a different directory.  As your PR stands, the output will be wrong and the test in `18_examples` will fail.

`FILE` in the prep section is replaced by `remake_outputs.pl` with a temporary filename, usually `examplename.cf.txt`.  I am open to suggestions for improving that from you and @vohi and anyone else.