vim-patch:9d8ef7cc4340

runtime: cleanup :Sman command via the undo_ftplugin mechanism (vim/vim#12967)

Regards to @dkearns as noticed in
https://github.com/vim/vim/commit/2ac708b548660b232a32c52d89bde3d8596646c0

https://github.com/vim/vim/commit/9d8ef7cc434076dfda62ca3d3101eaae52e316cd

Co-authored-by: Enno <Konfekt@users.noreply.github.com>

runtime/ftplugin/sshconfig.vim

@@ -26,7 +26,7 @@ if has('unix') && executable('less')
   if exists(':Sman') == 2
     setlocal iskeyword+=-
     setlocal keywordprg=:Sman
-    let b:undo_ftplugin .= '| setlocal keywordprg< iskeyword<'
+    let b:undo_ftplugin .= '| setlocal keywordprg< iskeyword< | sil! delc -buffer Sman'
   endif
 endif