Corrected spaces in trace

src/artis/utils/Trace.hpp

@@ -256,7 +256,7 @@ public:
         for (typename TraceElements < Time >::const_iterator it =
              TraceElements < Time >::begin();
              it != TraceElements < Time >::end(); ++it) {
-            ss << (it->from_kernel() ? "KERNEL" : "TRACE");
+            ss << (it->from_kernel() ? "KERNEL" : "TRACE ");
             if(it->get_time() != Time::null) {
                ss << "(" << utils::DateTime::toJulianDayFmt(it->get_time(), date_format) << ")";
             }