[evolution] Fix broken Help menu entry in Memo Editor after Mallard transition.

[Andre Klapper <aklapper src gnome org>]

commit c2c852f59818e3526a1da3ba89724d9efd4f4351
Author: Andre Klapper <ak-47 gmx net>
Date:   Wed Feb 15 13:10:18 2012 +0100

    Fix broken Help menu entry in Memo Editor after Mallard transition.

 calendar/gui/dialogs/comp-editor.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/calendar/gui/dialogs/comp-editor.c b/calendar/gui/dialogs/comp-editor.c
index d5eee61..12ecb02 100644
--- a/calendar/gui/dialogs/comp-editor.c
+++ b/calendar/gui/dialogs/comp-editor.c
@@ -1786,7 +1786,7 @@ comp_editor_class_init (CompEditorClass *class)
 	widget_class->drag_motion = comp_editor_drag_motion;
 	widget_class->drag_data_received = comp_editor_drag_data_received;
 
-	class->help_section = "usage-calendar";
+	class->help_section = "memos-usage";
 	class->edit_comp = real_edit_comp;
 	class->send_comp = real_send_comp;
 	class->object_created = NULL;