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/php.vim b/runtime/ftplugin/php.vim
index f03f145..e124961 100644
--- a/runtime/ftplugin/php.vim
+++ b/runtime/ftplugin/php.vim
@@ -3,6 +3,7 @@
 " Maintainer:		Doug Kearns <dougkearns@gmail.com>
 " Previous Maintainer:	Dan Sharp
 " Last Change:		2024 Jan 14
+" Last Change:		2024 May 23 by Riley Bruins <ribru17@gmail.com> ('commentstring')
 
 if exists("b:did_ftplugin")
   finish
@@ -44,7 +45,7 @@
 endif
 
 setlocal comments=s1:/*,mb:*,ex:*/,://,:#
-setlocal commentstring=/*%s*/
+setlocal commentstring=/*\ %s\ */
 setlocal formatoptions+=l formatoptions-=t
 
 if get(g:, "php_autocomment", 1)