Use slf4j formatting instead for String.format
diff --git a/src/main/java/org/apache/sling/distribution/journal/impl/subscriber/DistributionSubscriber.java b/src/main/java/org/apache/sling/distribution/journal/impl/subscriber/DistributionSubscriber.java
index 8aac747..7d14535 100644
--- a/src/main/java/org/apache/sling/distribution/journal/impl/subscriber/DistributionSubscriber.java
+++ b/src/main/java/org/apache/sling/distribution/journal/impl/subscriber/DistributionSubscriber.java
@@ -211,10 +211,8 @@
             Thread.currentThread().interrupt();
             LOG.info("Join interrupted");
         }
-        String msg = String.format(
-                "Stopped Subscriber agent %s, subscribed to Publisher agent names %s with package builder %s",
+        LOG.info("Stopped Subscriber agent {}, subscribed to Publisher agent names {} with package builder {}",
                 subAgentName, queueNames, pkgType);
-        LOG.info(msg);
     }
     
     public DistributionAgentState getState() {