results_importer: Do not try to import empty junit
Some tests may produce empty junit (e.g. test crashing at certain point, etc), so those results will be ignored.
Due to an influx of spam, we have had to impose restrictions on new accounts. Please see this wiki page for instructions on how to get full permissions. Sorry for the inconvenience.
Some tests may produce empty junit (e.g. test crashing at certain point, etc), so those results will be ignored.