[Network] az network nsg rule list: Fix ranges and prefixes disappe…

…ared with `-o table` option (#27972)

* fix: table transformer of nsg rule list

* style: fix over-indented

* style: fix line too long

src/azure-cli/azure/cli/command_modules/network/_format.py

@@ -2,8 +2,8 @@
 # Copyright (c) Microsoft Corporation. All rights reserved.
 # Licensed under the MIT License. See License.txt in the project root for license information.
 # --------------------------------------------------------------------------------------------
-
-
+#
+# pylint: disable=line-too-long
 from collections import OrderedDict
 
 
@@ -112,16 +112,15 @@ def transform_nsg_rule_table_output(result):
     item['Name'] = result['name']
     item['ResourceGroup'] = result['resourceGroup']
     item['Priority'] = result['priority']
-    item['SourcePortRanges'] = result.get('sourcePortRange', ' '.join(result['sourcePortRanges']))
-    item['SourceAddressPrefixes'] = result.get('sourceAddressPrefix', ' '.join(result['sourceAddressPrefixes']))
-    item['SourceASG'] = result.get('sourceApplicationSecurityGroups', 'None')
+    item['SourcePortRanges'] = result.get('sourcePortRange', None) or ' '.join(result['sourcePortRanges'])
+    item['SourceAddressPrefixes'] = result.get('sourceAddressPrefix', None) or ' '.join(result['sourceAddressPrefixes'])
+    item['SourceASG'] = result.get('sourceApplicationSecurityGroups', None) or 'None'
     item['Access'] = result['access']
     item['Protocol'] = result['protocol']
     item['Direction'] = result['direction']
-    item['DestinationPortRanges'] = result.get('destinationPortRange', ' '.join(result['destinationPortRanges']))
-    item['DestinationAddressPrefixes'] = result.get('destinationAddressPrefix',
-                                                    ' '.join(result['destinationAddressPrefixes']))
-    item['DestinationASG'] = result.get('destinationApplicationSecurityGroups', 'None')
+    item['DestinationPortRanges'] = result.get('destinationPortRange', None) or ' '.join(result['destinationPortRanges'])
+    item['DestinationAddressPrefixes'] = result.get('destinationAddressPrefix', None) or ' '.join(result['destinationAddressPrefixes'])
+    item['DestinationASG'] = result.get('destinationApplicationSecurityGroups', None) or 'None'
     return item