[gtk+] marks_start_element(): initialize "value" to get rid of a compiler warning

[Michael Natterer <mitch src gnome org>]

commit d30c31d6e1f9391dbe320db0e5ebc110801d03a2
Author: Michael Natterer <mitch gimp org>
Date:   Thu Aug 27 21:11:28 2009 +0200

    marks_start_element(): initialize "value" to get rid of a compiler warning

 gtk/gtkscale.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gtk/gtkscale.c b/gtk/gtkscale.c
index 261d698..2f4cc98 100644
--- a/gtk/gtkscale.c
+++ b/gtk/gtkscale.c
@@ -1423,7 +1423,7 @@ marks_start_element (GMarkupParseContext *context,
    ;
   else if (strcmp (element_name, "mark") == 0)
     {
-      gdouble value;
+      gdouble value = 0;
       gboolean has_value = FALSE;
       GtkPositionType position = GTK_POS_BOTTOM;
       const gchar *msg_context = NULL;