Python code modernization, 5/n (#1165)

* Address raise-missing-from.

* Address simplifiable-if-expression.

* Address unnecessary-dunder-call.

* Address unnecessary-pass.

* Address use-list-literal.

* Address unused-variable.

* Address use-dict-literal.

plugins/modules/docker_node_info.py

@@ -131,10 +131,10 @@ def get_node_facts(client):
 
 
 def main():
-    argument_spec = dict(
-        name=dict(type="list", elements="str"),
-        self=dict(type="bool", default=False),
-    )
+    argument_spec = {
+        "name": {"type": "list", "elements": "str"},
+        "self": {"type": "bool", "default": False},
+    }
 
     client = AnsibleDockerSwarmClient(
         argument_spec=argument_spec,