fix logging warn level

git-svn-id: https://svn.apache.org/repos/asf/archiva/redback/redback-components/trunk@1546881 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/src/main/java/org/apache/archiva/redback/components/scheduler/DefaultScheduler.java b/src/main/java/org/apache/archiva/redback/components/scheduler/DefaultScheduler.java
index 7876c38..55f912b 100644
--- a/src/main/java/org/apache/archiva/redback/components/scheduler/DefaultScheduler.java
+++ b/src/main/java/org/apache/archiva/redback/components/scheduler/DefaultScheduler.java
@@ -58,8 +58,8 @@
 
         if ( jobExists( jobDetail.getKey() ) )
         {
-            log.warn( "Will not schedule this job as a job {" + jobDetail.getKey().getName() + ":"
-                          + jobDetail.getKey().getGroup() + "} already exists." );
+            log.warn( "Will not schedule this job as a job ({}:{}) already exists.",
+                      jobDetail.getKey().getName(), jobDetail.getKey().getGroup() );
 
             return;
         }