fixed wrong map in debug message

BauSystem_Main/src/de/steamwar/bausystem/features/tracer/TraceRecorder.java

@@ -175,7 +175,7 @@ public class TraceRecorder implements Listener {
                 Logger logger = Bukkit.getLogger();
                 logger.log(Level.WARNING, "Nullpointer thrown by historyMap");
                 logger.log(Level.WARNING, "TNT History: " + history);
-                logger.log(Level.WARNING, "History Map" + history);
+                logger.log(Level.WARNING, "History Map: " + historyMap);
                 throw  e;
             }
             tntID = wrappedTrace.getNextOpenRecordIdAndIncrement();