[gtk+/wip/css-tree] css: Fixed typo in PRINT_TREE debug code

[Alexander Larsson <alexl src gnome org>]

commit 18536fc04476e0d1830af5ed5fbfcb1b998292c9
Author: Alexander Larsson <alexl redhat com>
Date:   Wed Nov 28 12:13:09 2012 +0100

    css: Fixed typo in PRINT_TREE debug code

 gtk/gtkcssselector.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gtk/gtkcssselector.c b/gtk/gtkcssselector.c
index 7a29ca6..2197b1e 100644
--- a/gtk/gtkcssselector.c
+++ b/gtk/gtkcssselector.c
@@ -1815,7 +1815,7 @@ _gtk_css_selector_tree_builder_build (GtkCssSelectorTreeBuilder *builder)
     GString *s = g_string_new ("");
     _gtk_css_selector_tree_print (tree, s, "");
     g_print ("%s", s->str);
-    g_string_free (s);
+    g_string_free (s, TRUE);
   }
 #endif