runtime(nu): include filetype plugin

This is used to set the commentstring option.

closes: #15601

Signed-off-by: Christian Brabandt <cb@256bit.org>
Signed-off-by: Marc Jakobi <marc.jakobi@tiko.energy>

Author: Marc Jakobi

.github/MAINTAINERS

@@ -213,6 +213,7 @@ runtime/ftplugin/nginx.vim		@chr4
 runtime/ftplugin/nim.vim		@ribru17
 runtime/ftplugin/nroff.vim		@a-vrma
 runtime/ftplugin/nsis.vim		@k-takata
+runtime/ftplugin/nu.vim		@mrcjkb
 runtime/ftplugin/octave.vim		@dkearns
 runtime/ftplugin/ondir.vim		@jparise
 runtime/ftplugin/openvpn.vim		@ObserverOfTime

runtime/ftplugin/nu.vim

@@ -0,0 +1,13 @@
+" Vim filetype plugin
+" Language:	Nu
+" Maintainer:	Marc Jakobi <marc@jakobi.dev>
+" Last Change:	2024 Aug 31
+
+if exists('b:did_ftplugin')
+  finish
+endif
+let b:did_ftplugin = 1
+
+setlocal commentstring=#\ %s
+
+let b:undo_ftplugin = 'setl com<'