patch 9.1.0464: no whitespace padding in commentstring option in ftplugins

Problem:  no whitespace padding in commentstring option in ftplugins
Solution: Change default to include whitespace padding, update
          existing filetype plugins with the new default value
          (Riley Bruins)

closes: #14843

Signed-off-by: Riley Bruins <ribru17@hotmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/runtime/ftplugin/fstab.vim b/runtime/ftplugin/fstab.vim
index 9980532..0e7ffda 100644
--- a/runtime/ftplugin/fstab.vim
+++ b/runtime/ftplugin/fstab.vim
@@ -3,6 +3,7 @@
 " Maintainer: Radu Dineiu <radu.dineiu@gmail.com>
 " URL: https://raw.github.com/rid9/vim-fstab/master/ftplugin/fstab.vim
 " Last Change: 2021 Jan 02
+"              2024 May 23 by Riley Bruins <ribru17@gmail.com> ('commentstring')
 " Version: 1.0
 "
 " Credits:
@@ -13,7 +14,7 @@
 endif
 let b:did_ftplugin = 1
 
-setlocal commentstring=#%s
+setlocal commentstring=#\ %s
 let b:undo_ftplugin = "setlocal commentstring<"
 
 " vim: ts=8 ft=vim