[gtk+] Trivial typo fix

[Matthias Clasen <matthiasc src gnome org>]

commit 50a206223f061e3628f9c8e2279dff04049e3d07
Author: Matthias Clasen <mclasen redhat com>
Date:   Tue Dec 10 23:02:33 2013 -0500

    Trivial typo fix

 gtk/gtkheaderbar.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gtk/gtkheaderbar.c b/gtk/gtkheaderbar.c
index 2e5f3e2..3fba3c2 100644
--- a/gtk/gtkheaderbar.c
+++ b/gtk/gtkheaderbar.c
@@ -1729,7 +1729,7 @@ gtk_header_bar_class_init (GtkHeaderBarClass *class)
   g_object_class_install_property (object_class,
                                    PROP_SUBTITLE,
                                    g_param_spec_string ("subtitle",
-                                                        P_("Subitle"),
+                                                        P_("Subtitle"),
                                                         P_("The subtitle to display"),
                                                         NULL,
                                                         G_PARAM_READWRITE));