chore(notification): improve log message

pkg/services/alerting/notifier.go

@@ -49,7 +49,7 @@ func (n *RootNotifier) Notify(context *EvalContext) error {
 		return err
 	}
 
-	n.log.Info("Sending notifications for", "ruleId", context.Rule.Id, "Amount to send", len(notifiers))
+	n.log.Info("Sending notifications for", "ruleId", context.Rule.Id, "sent count", len(notifiers))
 
 	if len(notifiers) == 0 {
 		return nil