runtime(doc): Fix to two-space convention in user manual

closes: #15802

Signed-off-by: h-east <h.east.727@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/runtime/doc/usr_05.txt b/runtime/doc/usr_05.txt
index 21629e3..ca6b910 100644
--- a/runtime/doc/usr_05.txt
+++ b/runtime/doc/usr_05.txt
@@ -1,4 +1,4 @@
-*usr_05.txt*	For Vim version 9.1.  Last change: 2024 Jun 28
+*usr_05.txt*	For Vim version 9.1.  Last change: 2024 Oct 05
 
 		     VIM USER MANUAL - by Bram Moolenaar
 
@@ -446,7 +446,7 @@
 for commenting (which is a well-established mapping in the Vim community).
 
 If you add this line to your vimrc file, then you need to restart Vim to have
-the package loaded. Once the package is loaded, read about it at: >
+the package loaded.  Once the package is loaded, read about it at: >
 	:h comment.txt