Crypt the text in the undo file if the file itself is crypted.
diff --git a/runtime/indent/tf.vim b/runtime/indent/tf.vim
index 61cebc3..1759773 100644
--- a/runtime/indent/tf.vim
+++ b/runtime/indent/tf.vim
@@ -1,7 +1,7 @@
" Vim indent file
" Language: tf (TinyFugue)
-" Maintainer: Christian J. Robinson <infynity@onewest.net>
-" URL: http://www.infynity.spodzone.com/vim/indent/tf.vim
+" Maintainer: Christian J. Robinson <heptite@gmail.com>
+" URL: http://christianrobinson.name/vim/indent/tf.vim
" Last Change: 2002 May 29
" Only load this indent file when no other was loaded.