[gtk+] oopx - fix typo

[Yosef Or Boczko <yoseforb src gnome org>]

commit 89f701ab2ef2cfd6f6db15147006415c9743cefa
Author: Yosef Or Boczko <yoseforb gmail com>
Date:   Wed Aug 14 10:45:35 2013 +0300

    oopx - fix typo
    
    Signed-off-by: Yosef Or Boczko <yoseforb gmail com>

 gtk/gtkbutton.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gtk/gtkbutton.c b/gtk/gtkbutton.c
index 3074e7e..786f3c9 100644
--- a/gtk/gtkbutton.c
+++ b/gtk/gtkbutton.c
@@ -1328,7 +1328,7 @@ gtk_button_new_from_icon_name (const gchar *icon_name,
                          "image", image,
                          NULL);
   context = gtk_widget_get_style_context (button);
-  gtk_style_context_add_class (context, "image-button"));
+  gtk_style_context_add_class (context, "image-button");
 
   return button;
 }