- this test would fail if the logfile already exists for
any reason (including "I just ran the test")
- remove the file before expecting an empty logfile
- improve messages; a missing logfile is not a "things cannot
work" situation, it's a warning
This tests only the termbin ("fiche") paste by sending it
a derpy fixed string. Prints the resulting URL, doesn't
verify in particular.
It'd be rude to run this test too often.