Merge branch 'stable-2.15' into stable-2.16

* stable-2.15:
  IndexTs: Fix log formatting
  SLF4JLog: Fix debug log level

Change-Id: I0e575a9c4b4a686eab7dd519ed8a5a93a434aa0e
diff --git a/src/main/java/com/ericsson/gerrit/plugins/highavailability/autoreindex/IndexTs.java b/src/main/java/com/ericsson/gerrit/plugins/highavailability/autoreindex/IndexTs.java
index b36c309..3cfe0fe 100644
--- a/src/main/java/com/ericsson/gerrit/plugins/highavailability/autoreindex/IndexTs.java
+++ b/src/main/java/com/ericsson/gerrit/plugins/highavailability/autoreindex/IndexTs.java
@@ -76,7 +76,7 @@
         try {
           Files.write(indexTsFile, latestTs.format(formatter).getBytes(StandardCharsets.UTF_8));
         } catch (IOException e) {
-          log.error("Unable to update last timestamp for index " + index, e);
+          log.error("Unable to update last timestamp for index {}", index, e);
         }
       }
     }
@@ -120,7 +120,7 @@
               ? LocalDateTime.now()
               : changeNotes.getChange().getLastUpdatedOn().toLocalDateTime());
     } catch (Exception e) {
-      log.warn("Unable to update the latest TS for change {}", e);
+      log.warn("Unable to update the latest TS for change {}", id, e);
     }
   }
 
diff --git a/src/main/java/com/ericsson/gerrit/plugins/highavailability/peers/jgroups/SLF4JLog.java b/src/main/java/com/ericsson/gerrit/plugins/highavailability/peers/jgroups/SLF4JLog.java
index 98716af..43b6f9c 100644
--- a/src/main/java/com/ericsson/gerrit/plugins/highavailability/peers/jgroups/SLF4JLog.java
+++ b/src/main/java/com/ericsson/gerrit/plugins/highavailability/peers/jgroups/SLF4JLog.java
@@ -125,7 +125,7 @@
 
   @Override
   public void debug(String msg) {
-    logger.info(msg);
+    logger.debug(msg);
   }
 
   @Override