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/fennel.vim b/runtime/ftplugin/fennel.vim
index 93cf366..2a9623f 100644
--- a/runtime/ftplugin/fennel.vim
+++ b/runtime/ftplugin/fennel.vim
@@ -2,13 +2,14 @@
 " Language:     Fennel
 " Maintainer:   Gregory Anders <greg[NOSPAM]@gpanders.com>
 " Last Update:  2023 Jun 9
+"               2024 May 24 by Riley Bruins <ribru17@gmail.com> ('commentstring')
 
 if exists('b:did_ftplugin')
   finish
 endif
 let b:did_ftplugin = 1
 
-setlocal commentstring=;%s
+setlocal commentstring=;\ %s
 setlocal comments=:;;,:;
 setlocal formatoptions-=t
 setlocal suffixesadd=.fnl