Update runtime files
diff --git a/runtime/indent/occam.vim b/runtime/indent/occam.vim
index 2979ac1..673940a 100644
--- a/runtime/indent/occam.vim
+++ b/runtime/indent/occam.vim
@@ -2,7 +2,7 @@
" Language: occam
" Maintainer: Mario Schweigler <ms44@kent.ac.uk> (Invalid email address)
" Doug Kearns <dougkearns@gmail.com>
-" Last Change: 23 April 2003
+" Last Change: 2022 Apr 06
" Only load this indent file when no other was loaded.
if exists("b:did_indent")
@@ -17,6 +17,8 @@
setlocal indentkeys=o,O,0=:
"}}}
+let b:undo_indent = "setl inde< indk<"
+
" Only define the function once
if exists("*GetOccamIndent")
finish