Fix a few compiler warnings. Fix crash with encrypted undo file.
diff --git a/runtime/doc/todo.txt b/runtime/doc/todo.txt
index 12c6b68..549dcff 100644
--- a/runtime/doc/todo.txt
+++ b/runtime/doc/todo.txt
@@ -30,6 +30,8 @@
*known-bugs*
-------------------- Known bugs and current work -----------------------
+gtk_selection_clear_targets not available in GTK1 (Patrick Texier)
+
Cursor positioning wrong with 0x200e character. (John Becket, 2010 May 6)
E315 when trying to change a file in FileChangedRO autocommand event.