Update runtime files
diff --git a/runtime/indent/dylan.vim b/runtime/indent/dylan.vim
index 55255dd..e2a6d10 100644
--- a/runtime/indent/dylan.vim
+++ b/runtime/indent/dylan.vim
@@ -3,7 +3,7 @@
" Maintainer: Brent A. Fulgham <bfulgham@debian.org> (Invalid email address)
" Doug Kearns <dougkearns@gmail.com>
" Version: 0.01
-" Last Change: 2017 Jun 13
+" Last Change: 2022 Apr 06
" Only load this indent file when no other was loaded.
if exists("b:did_indent")
@@ -15,6 +15,9 @@
" Define the appropriate indent function but only once
setlocal indentexpr=DylanGetIndent()
+
+let b:undo_indent = "setl inde< indk<"
+
if exists("*DylanGetIndent")
finish
endif