Fix a missing i18n support in security_group_rule.py

Change-Id: Id1459366ccf894275a11c2af840568d4fd114e18

Author: Huanxuan Ao

openstackclient/network/v2/security_group_rule.py

@@ -526,8 +526,8 @@ def take_action_compute(self, client, parsed_args):
                 break
 
         if obj is None:
-            msg = _("Could not find security group rule with ID ") + \
-                parsed_args.rule
+            msg = _("Could not find security group rule "
+                    "with ID '%s'") % parsed_args.rule
             raise exceptions.CommandError(msg)
 
         # NOTE(rtheis): Format security group rule