[gnome-system-monitor] Initialize all LoadGraph and OptionGroup members.

[Robert Roth <robertroth src gnome org>]

commit 4639213ae75c86d824790fd060420902dc8a4491
Author: Benoît Dejean <bdejean gmail com>
Date:   Mon Apr 28 11:34:12 2014 +0200

    Initialize all LoadGraph and OptionGroup members.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=742070

 src/argv.cpp       |    1 +
 src/load-graph.cpp |    7 ++++++-
 2 files changed, 7 insertions(+), 1 deletions(-)
---
diff --git a/src/argv.cpp b/src/argv.cpp
index 0b36965..a82d790 100644
--- a/src/argv.cpp
+++ b/src/argv.cpp
@@ -10,6 +10,7 @@ namespace procman
 {
     OptionGroup::OptionGroup()
         : Glib::OptionGroup("", ""),
+          show_system_tab(false),
           show_processes_tab(false),
           show_resources_tab(false),
           show_file_systems_tab(false),
diff --git a/src/load-graph.cpp b/src/load-graph.cpp
index af2eb78..21c7142 100644
--- a/src/load-graph.cpp
+++ b/src/load-graph.cpp
@@ -697,13 +697,18 @@ LoadGraph::LoadGraph(guint type)
       real_draw_height(0),
       graph_delx(0.0),
       graph_buffer_offset(0),
+      colors(),
+      data_block(),
       main_widget(NULL),
       disp(NULL),
       background(NULL),
       timer_index(0),
       draw(FALSE),
+      labels(),
       mem_color_picker(NULL),
-      swap_color_picker(NULL)
+      swap_color_picker(NULL),
+      cpu(),
+      net()
 {
     LoadGraph * const graph = this;