trivial: Don't try to print results if none there
If self.test_results contains no elements, the calculation of the
lengths of the fields fails. Don't try to print the results then at
all.
@@ -213,6 +213,7 @@ class RegressionManager(object):
self.log.info("Writing coverage data")
self._cov.save()
self._cov.html_report()
+ if len(self.test_results) > 0:
self._log_test_summary()
self._log_sim_summary()
self.log.info("Shutting down...")
