[glade] Fix a typo

[Matthias Clasen <matthiasc src gnome org>]

commit a4779a93f2f380bf1f27cedfd22b7b49e6fd2634
Author: Matthias Clasen <mclasen redhat com>
Date:   Mon Nov 10 22:45:42 2014 -0500

    Fix a typo

 plugins/gtk+/glade-gtk-header-bar.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/plugins/gtk+/glade-gtk-header-bar.c b/plugins/gtk+/glade-gtk-header-bar.c
index f1526a8..f020e7c 100644
--- a/plugins/gtk+/glade-gtk-header-bar.c
+++ b/plugins/gtk+/glade-gtk-header-bar.c
@@ -110,7 +110,7 @@ glade_gtk_header_bar_action_activate (GladeWidgetAdaptor *adaptor,
 
       parent = glade_widget_get_from_gobject (object);
 
-      glade_command_push_group (_("Insert placeholer to %s"), glade_widget_get_name (parent));
+      glade_command_push_group (_("Insert placeholder to %s"), glade_widget_get_name (parent));
 
       property = glade_widget_get_property (parent, "size");
       glade_property_get (property, &size);