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_volume_info.py

@@ -92,9 +92,9 @@ def get_existing_volume(client, volume_name):
 
 
 def main():
-    argument_spec = dict(
-        name=dict(type="str", required=True, aliases=["volume_name"]),
-    )
+    argument_spec = {
+        "name": {"type": "str", "required": True, "aliases": ["volume_name"]},
+    }
 
     client = AnsibleDockerClient(
         argument_spec=argument_spec,
@@ -106,7 +106,7 @@ def main():
 
         client.module.exit_json(
             changed=False,
-            exists=(True if volume else False),
+            exists=bool(volume),
             volume=volume,
         )
     except DockerException as e: