vim-patch:ce001a337e28 (#18287)

Update runtime files
ce001a337e

also add `vimStdPlugin` keywords missing from previous updates

runtime/ftplugin/elixir.vim

@@ -0,0 +1,11 @@
+" Elixir filetype plugin
+" Language: Elixir
+" Maintainer:	Mitchell Hanberg <vimNOSPAM@mitchellhanberg.com>
+" Last Change: 2022 Apr 20
+
+if exists("b:did_ftplugin")
+  finish
+endif
+let b:did_ftplugin = 1
+
+setlocal commentstring=#\ %s