Cleanup: argument wrapping for Python scripts

- Wrap the closing parenthesis onto it's own line
  which makes assignments to the return value
  read better.
- Reduce right-shift with multi-line function calls.

scripts/templates_py/addon_add_object.py

@@ -55,7 +55,8 @@ def add_object_button(self, context):
     self.layout.operator(
         OBJECT_OT_add_object.bl_idname,
         text="Add Object",
-        icon='PLUGIN')
+        icon='PLUGIN',
+    )
 
 
 # This allows you to right click on a button and link to documentation

scripts/templates_py/ui_list_simple.py

@@ -56,8 +56,10 @@ class UIListPanelExample(bpy.types.Panel):
         # The second one can usually be left as an empty string.
         # It's an additional ID used to distinguish lists in case you
         # use the same list several times in a given area.
-        layout.template_list("MATERIAL_UL_matslots_example", "compact", obj, "material_slots",
-                             obj, "active_material_index", type='COMPACT')
+        layout.template_list(
+            "MATERIAL_UL_matslots_example", "compact", obj, "material_slots",
+            obj, "active_material_index", type='COMPACT',
+        )
 
 
 def register():