This should make it easier to find the artifacts storage location when
reading the debug log.
On my localhost, I now see this:
[libtaskotron:resultsdb_directive.py:294] 2017-01-18 14:56:48 INFO Posting 1 results to ResultsDB... [libtaskotron:resultsdb_directive.py:325] 2017-01-18 14:56:49 DEBUG External URL for task artifacts was set to: http://localhost/artifacts/all/20170118_145642_514416
Of course that URL is not correct/configured, but in our real infrastructure the logs should contain something like this:
[libtaskotron:resultsdb_directive.py:325] 2017-01-18 14:56:49 DEBUG External URL for task artifacts was set to: https://taskotron-dev.fedoraproject.org/artifacts/all/558374a4-dd7a-11e6-8458-525400cb0b45