Logging enhancements, avoid useless stacktrace.

joram/a3/rt/src/main/java/fr/dyade/aaa/agent/ServiceManager.java

@@ -198,7 +198,7 @@ public class ServiceManager implements Serializable {
         start(desc);
       } catch (Exception exc) {
         xlogmon.log(BasicLevel.ERROR,
-                   getName() + ", cannot start service:" + desc.getClassName(), exc);
+                    getName() + ", cannot start service:" + desc.getClassName(), exc);
         if (exitOnFailure)
           throw new Exception("Cannot start service " + desc.getClassName());
       }