Xdist 2.0 compatibility

Author: Zac-HD

pytest_selenium/safety.py

@@ -22,8 +22,8 @@ def pytest_addoption(parser):
 
 
 def pytest_configure(config):
-    if hasattr(config, "slaveinput"):
-        return  # xdist slave
+    if hasattr(config, "workerinput"):
+        return  # avoid doing anything if this is an xdist worker node
     config.option.sensitive_url = (
         config.getoption("sensitive_url")
         or config.getini("sensitive_url")