fix style check

Author: yanzhudd

src/azure-cli/azure/cli/command_modules/vm/_breaking_change.py

@@ -4,5 +4,14 @@
 # --------------------------------------------------------------------------------------------
 from azure.cli.core.breaking_change import register_default_value_breaking_change
 
-register_default_value_breaking_change('vm create', '--size', 'Standard_DS1_v2', 'Standard_D2s_v5', target_version=None)
-register_default_value_breaking_change('vmss create', '--vm-sku', 'Standard_DS1_v2', 'Standard_D2s_v5', target_version=None)
+register_default_value_breaking_change(command_name='vm create',
+                                       arg='--size',
+                                       current_default='Standard_DS1_v2',
+                                       new_default='Standard_D2s_v5',
+                                       target_version=None)
+
+register_default_value_breaking_change(command_name='vmss create',
+                                       arg='--vm-sku',
+                                       current_default='Standard_DS1_v2',
+                                       new_default='Standard_D2s_v5',
+                                       target_version=None)