Add the 'concealcursor' option to decide when the cursor line is to be
concealed or not.
Rename 'conc' to 'cole' as the short name for 'conceallevel'.
diff --git a/runtime/ftplugin/help.vim b/runtime/ftplugin/help.vim
index fe47f39..fff9527 100644
--- a/runtime/ftplugin/help.vim
+++ b/runtime/ftplugin/help.vim
@@ -11,9 +11,9 @@
let s:cpo_save = &cpo
set cpo&vim
-let b:undo_ftplugin = "setl fo< tw< conc<"
+let b:undo_ftplugin = "setl fo< tw< cole< cocu<"
-setlocal formatoptions+=tcroql textwidth=78 conc=2
+setlocal formatoptions+=tcroql textwidth=78 cole=2 cocu=n
let &cpo = s:cpo_save
unlet s:cpo_save