Fix off-by-one error

build.sh

@@ -68,7 +68,7 @@ failure()
         echo "Please check logfile: `basename $LOGFILE`"
         echo "These are the final ten lines:"
         echo "------------------------------------"
-        tail -n 14 $LOGFILE | head -n 10
+        tail -n 13 $LOGFILE | head -n 10
     fi
 
     echo "************************************" | tee -a $LOGFILE