[gnome-system-monitor/abderrahim/outofbounds] load-graph: fix out-of-bounds error

[Abderrahim Kitouni <akitouni src gnome org>]

commit 5076dae1bfdc3e127b3da6e1556e0e6db5168375
Author: Abderrahim Kitouni <akitouni gnome org>
Date:   Sat Feb 13 16:48:47 2021 +0100

    load-graph: fix out-of-bounds error

 src/load-graph.cpp | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/src/load-graph.cpp b/src/load-graph.cpp
index 3285d111..5282ce23 100644
--- a/src/load-graph.cpp
+++ b/src/load-graph.cpp
@@ -628,7 +628,7 @@ net_scale (LoadGraph *graph, guint64 din, guint64 dout)
         new_max = dmax;
     else
         new_max = *std::max_element(&graph->net.values[0],
-                                    &graph->net.values[graph->num_points]);
+                                    &graph->net.values[graph->num_points - 1]);
 
     //
     // Round network maximum
@@ -792,8 +792,8 @@ load_graph_update_data (LoadGraph *graph)
 {
     // Rotate data one element down.
     std::rotate(&graph->data[0],
-                &graph->data[graph->num_points - 1],
-                &graph->data[graph->num_points]);
+                &graph->data[graph->num_points - 2],
+                &graph->data[graph->num_points - 1]);
 
     // Update rotation counter.
     graph->latest = (graph->latest + 1) % graph->num_points;