The previous version of that script made a repetitive use
of the pytest builtin fixture, with always
the same arguments.
This is a small refactoring and cleanup, mainly adding the 'function'
scope to ensure proper cleaning and using the @pytest.fixture
decorator where I could.
Split verbosity into termlog_verbosity and console_eventlog_verbosity.
This patch also removes printing to console if there are unknown options in the
command-line. Options now live in separate addons, so having uknown options
remaining is common and expected. We definitely shoould have some other way for
users to see what was ignored so they can catch typos and the like, but that's
a different patch.
