Display tenant id with nova list --all-tenants

For each server, nova list --all-tenants will now display
its corresponding tenant ID as well.

Change-Id: I586d6c5bbb15ebb5df25dc4fa849ac4d5af149e9
Closes-bug: #1403431

novaclient/v1_1/shell.py

@@ -1396,6 +1396,10 @@ def do_list(cs, args):
             'Power State',
             'Networks'
         ]
+        # If getting the data for all tenants, print
+        # Tenant ID as well
+        if search_opts['all_tenants']:
+            columns.insert(2, 'Tenant ID')
     formatters['Networks'] = utils._format_servers_list_networks
     sortby_index = 1
     if args.sort: