Fix black.

services/escalator/escalation.py

@@ -128,7 +128,7 @@ def escalate(alarm_id, escalation_id, escalation_delay, login="correlator", *arg
                 Job.retry_after(
                     get_next_retry(),
                     "Escalation limit exceeded (%s/%s). Skipping"
-                    % (ae, config.escalator.tt_escalation_limit)
+                    % (ae, config.escalator.tt_escalation_limit),
                 )
                 return
             # Check whether consequences has escalations