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/hamster.vim b/runtime/ftplugin/hamster.vim
index 5446e72..904f267 100644
--- a/runtime/ftplugin/hamster.vim
+++ b/runtime/ftplugin/hamster.vim
@@ -3,6 +3,7 @@
 " Version:     2.0.6.0
 " Maintainer:  David Fishburn <dfishburn dot vim at gmail dot com>
 " Last Change: 2021 Jan 19
+"              2024 May 23 by Riley Bruins <ribru17@gmail.com> ('commentstring')
 
 " Only do this when not done yet for this buffer
 if exists("b:did_ftplugin")
@@ -31,7 +32,7 @@
 endif
 
 " Comments start with a double quote
-setlocal commentstring=#%s
+setlocal commentstring=#\ %s
 
 " Move around functions.
 noremap <silent><buffer> [[ :call search('^\s*sub\>', "bW")<CR>