fix team code review comments

Author: caberos

SoftLayer/CLI/hardware/detail.py

@@ -61,7 +61,8 @@ def cli(env, identifier, passwords, price):
     table.add_row(['os_version', operating_system.get('version') or formatting.blank()])
     table.add_row(['created', result['provisionDate'] or formatting.blank()])
     table.add_row(['owner', owner or formatting.blank()])
-    table.add_row(['LastTransaction', result['lastTransaction']['transactionGroup']['name']])
+    table.add_row(['last_transaction',
+                   utils.lookup(result, 'lastTransaction', 'transactionGroup', 'name')])
     table.add_row(['billing', 'Hourly' if result['hourlyBillingFlag'] else'Monthly'])
 
     vlan_table = formatting.Table(['type', 'number', 'id'])