[glibmm] Volume: Add get_sort_key().

[Murray Cumming <murrayc src gnome org>]

commit f8a3bd442577037170b87c9ed07d9303b87ac6e5
Author: Murray Cumming <murrayc murrayc com>
Date:   Fri Sep 7 10:07:17 2012 +0200

    Volume: Add get_sort_key().
    
    * gio/src/volume.hg: Wrap g_volume_get_sort_key().

 ChangeLog         |    6 ++++++
 gio/src/volume.hg |    2 ++
 2 files changed, 8 insertions(+), 0 deletions(-)
---
diff --git a/ChangeLog b/ChangeLog
index bc20047..2d2badd 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,11 @@
 2012-09-07  Murray Cumming  <murrayc murrayc com>
 
+	Volume: Add get_sort_key().
+
+	* gio/src/volume.hg: Wrap g_volume_get_sort_key().
+
+2012-09-07  Murray Cumming  <murrayc murrayc com>
+
 	ContentType: get_icon(): Fix a refcount error.
 
 	* gio/giomm/contenttype.cc: get_icon(): Take a reference.
diff --git a/gio/src/volume.hg b/gio/src/volume.hg
index 7d6bfc1..653a73a 100644
--- a/gio/src/volume.hg
+++ b/gio/src/volume.hg
@@ -149,6 +149,8 @@ public:
   _WRAP_METHOD(Glib::RefPtr<File> get_activation_root(), g_volume_get_activation_root)
   _WRAP_METHOD(Glib::RefPtr<const File> get_activation_root() const, g_volume_get_activation_root)
 
+  _WRAP_METHOD(Glib::ustring sort_key(), g_volume_get_sort_key)
+
   _WRAP_SIGNAL(void changed(), changed)
   _WRAP_SIGNAL(void removed(), removed)