Update runtime files
diff --git a/runtime/indent/d.vim b/runtime/indent/d.vim
index 57f9125..80c9a2f 100644
--- a/runtime/indent/d.vim
+++ b/runtime/indent/d.vim
@@ -2,7 +2,7 @@
" Language: D
" Maintainer: Jason Mills <jmills@cs.mun.ca> (Invalid email address)
" Doug Kearns <dougkearns@gmail.com>
-" Last Change: 2005 Nov 22
+" Last Change: 2022 Apr 06
" Version: 0.1
"
" Please email me with bugs, comments, and suggestion. Put vim in the subject
@@ -19,4 +19,6 @@
" D indenting is a lot like the built-in C indenting.
setlocal cindent
+let b:undo_indent = "setl cin<"
+
" vim: ts=8 noet