Fixed a reference to SauceLabs.DRIVER

Author: davehunt

pytest_selenium/drivers/saucelabs.py

@@ -79,7 +79,7 @@ def pytest_selenium_runtest_makereport(item, report, summary, extra):
             requests.put(api_url, data=data, auth=provider.auth, timeout=10)
     except Exception as e:
         summary.append('WARNING: Failed to update {0} job status: {1}'.format(
-            provider.DRIVER, e))
+            provider.name, e))
 
 
 def driver_kwargs(request, test, capabilities, **kwargs):