Fix pyupgrade

Author: micafer

libcloud/compute/drivers/openstack.py

@@ -1259,8 +1259,8 @@ def __init__(self, id, tenant_id, name, description, driver, rules=None, extra=N
         self.extra = extra or {}
 
     def __repr__(self):
-        return "<OpenStackSecurityGroup id=%s tenant_id=%s name=%s \
-        description=%s>" % (self.id, self.tenant_id, self.name, self.description)
+        return "<OpenStackSecurityGroup id={} tenant_id={} name={} \
+        description={}>".format(self.id, self.tenant_id, self.name, self.description)
 
 
 class OpenStackSecurityGroupRule: