Update runtime files
diff --git a/runtime/indent/awk.vim b/runtime/indent/awk.vim
index e653319..cf81322 100644
--- a/runtime/indent/awk.vim
+++ b/runtime/indent/awk.vim
@@ -24,6 +24,7 @@
" 29-04-2002 Fixed problems in function headers and max line width
" Added support for two-line if's without curly braces
" Fixed hang: 2011 Aug 31
+" 2022 April: b:undo_indent added by Doug Kearns
" Only load this indent file when no other was loaded.
if exists("b:did_indent")
@@ -36,6 +37,8 @@
" Mmm, copied from the tcl indent program. Is this okay?
setlocal indentkeys-=:,0#
+let b:undo_indent = "setl inde< indk<"
+
" Only define the function once.
if exists("*GetAwkIndent")
finish