[gtk+] Fix the build

[Matthias Clasen <matthiasc src gnome org>]

commit c27b90cc79fdb0a5086055161ea3f0882fae30b0
Author: Matthias Clasen <mclasen redhat com>
Date:   Fri Jul 17 20:45:28 2015 -0400

    Fix the build

 gtk/inspector/object-tree.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gtk/inspector/object-tree.c b/gtk/inspector/object-tree.c
index 72b5786..99d42ce 100644
--- a/gtk/inspector/object-tree.c
+++ b/gtk/inspector/object-tree.c
@@ -564,7 +564,7 @@ gtk_inspector_object_tree_append_object (GtkInspectorObjectTree *wt,
   else
     mapped = TRUE;
 
-  if (G_OBJECT (object)
+  if (G_OBJECT (object))
     class_name = G_OBJECT_CLASS_NAME (G_OBJECT_GET_CLASS (object));
   else
     class_name = "";