[dia] Don't use deprecated function gtk_radio_button_group().

[Hans Breuer <hans src gnome org>]

commit 18eae0f66be051df0007591d6584142a3b59b12a
Author: Adam Buchbinder <adam buchbinder gmail com>
Date:   Mon May 4 13:26:21 2009 -0400

    Don't use deprecated function gtk_radio_button_group().
    
    Replaced gtk_radio_button_group() with gtk_radio_button_get_group():
    http://library.gnome.org/devel/gtk/stable/GtkRadioButton.html#gtk-radio-button-group
    
    Signed-off-by: Adam Buchbinder <adam buchbinder gmail com>
    Signed-off-by: Hans Breuer <hans breuer org>
---
 app/diapagelayout.c |    2 +-
 app/interface.c     |    6 +++---
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/app/diapagelayout.c b/app/diapagelayout.c
index e90fc9d..bfbd41a 100644
--- a/app/diapagelayout.c
+++ b/app/diapagelayout.c
@@ -207,7 +207,7 @@ dia_page_layout_init(DiaPageLayout *self)
   gtk_widget_show(self->orient_portrait);
 
   self->orient_landscape = gtk_radio_button_new(
-	gtk_radio_button_group(GTK_RADIO_BUTTON(self->orient_portrait)));
+	gtk_radio_button_get_group(GTK_RADIO_BUTTON(self->orient_portrait)));
   pix = gdk_pixmap_colormap_create_from_xpm_d(NULL,
 		gtk_widget_get_colormap(GTK_WIDGET(self)), &mask, NULL,
 		landscape_xpm);
diff --git a/app/interface.c b/app/interface.c
index f816f5c..2b0fbd9 100644
--- a/app/interface.c
+++ b/app/interface.c
@@ -1128,7 +1128,7 @@ create_tools(GtkWidget *parent)
     tool_widgets[i] = button = gtk_radio_button_new (tool_group);
     gtk_container_set_border_width (GTK_CONTAINER (button), 0);
     gtk_button_set_relief(GTK_BUTTON(button), GTK_RELIEF_HALF);
-    tool_group = gtk_radio_button_group (GTK_RADIO_BUTTON (button));
+    tool_group = gtk_radio_button_get_group (GTK_RADIO_BUTTON (button));
     gtk_toggle_button_set_mode (GTK_TOGGLE_BUTTON (button), FALSE);
 
     gtk_wrap_box_pack(GTK_WRAP_BOX(parent), button,
@@ -1226,7 +1226,7 @@ fill_sheet_wbox(Sheet *sheet)
 
   gtk_container_foreach(GTK_CONTAINER(sheet_wbox),
 			(GtkCallback)gtk_widget_destroy, NULL);
-  tool_group = gtk_radio_button_group(GTK_RADIO_BUTTON(tool_widgets[0]));
+  tool_group = gtk_radio_button_get_group(GTK_RADIO_BUTTON(tool_widgets[0]));
 
   /* Remember sheet 'name' for 'Sheets and Objects' dialog */
   interface_current_sheet_name = sheet->name;
@@ -1294,7 +1294,7 @@ fill_sheet_wbox(Sheet *sheet)
     button = gtk_radio_button_new (tool_group);
     gtk_toggle_button_set_mode (GTK_TOGGLE_BUTTON (button), FALSE);
     gtk_container_set_border_width (GTK_CONTAINER (button), 0);
-    tool_group = gtk_radio_button_group (GTK_RADIO_BUTTON (button));
+    tool_group = gtk_radio_button_get_group (GTK_RADIO_BUTTON (button));
 
     gtk_container_add (GTK_CONTAINER (button), pixmapwidget);
     gtk_widget_show(pixmapwidget);