memory leak found during multiple reboots. it was found that in many cases the
reply was not unref'ed

--signed off by vishwanath@in.ibm.com---
diff --git a/sensorhandler.C b/sensorhandler.C
index d171bf5..90bfd0f 100644
--- a/sensorhandler.C
+++ b/sensorhandler.C
@@ -221,7 +221,7 @@
     }
 
 
-    sd_bus_message_unref(reply);
+    reply = sd_bus_message_unref(reply);
 
     return rc;
 }