make sure an extra %s in the secondi axis format does not kill us

git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk/program@2123 a5681a0c-68f1-0310-ab6d-d61299d08faa

diff --git a/src/rrd_graph.c b/src/rrd_graph.c
index 5c739be..d15ce3d 100644 (file)
--- a/src/rrd_graph.c
+++ b/src/rrd_graph.c
@@ -2301,7 +2301,7 @@ int horizontal_log_grid(
                         }
                 }
                 else {
-                      sprintf(graph_label_right,im->second_axis_format,sval);
+                      sprintf(graph_label_right,im->second_axis_format,sval,"");
                 }
 
                 gfx_text ( im,