Update runtime files
diff --git a/runtime/indent/ada.vim b/runtime/indent/ada.vim
index 6c8ab05..582d033 100644
--- a/runtime/indent/ada.vim
+++ b/runtime/indent/ada.vim
@@ -16,6 +16,7 @@
" 15.10.2006 MK Bram's suggestion for runtime integration
" 05.11.2006 MK Bram suggested to save on spaces
" 19.09.2007 NO g: missing before ada#Comment
+" 2022 April: b:undo_indent added by Doug Kearns
" Help Page: ft-vim-indent
"------------------------------------------------------------------------------
" ToDo:
@@ -35,6 +36,8 @@
setlocal indentkeys-=0{,0}
setlocal indentkeys+=0=~then,0=~end,0=~elsif,0=~when,0=~exception,0=~begin,0=~is,0=~record
+let b:undo_indent = "setl inde< indk<"
+
" Only define the functions once.
if exists("*GetAdaIndent")
finish