runtime(doc): fix a few style issues

closes: #15478

Signed-off-by: h-east <h.east.727@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/runtime/doc/options.txt b/runtime/doc/options.txt
index 8f8f70a..3ec8a3a 100644
--- a/runtime/doc/options.txt
+++ b/runtime/doc/options.txt
@@ -1,4 +1,4 @@
-*options.txt*	For Vim version 9.1.  Last change: 2024 Jul 28
+*options.txt*	For Vim version 9.1.  Last change: 2024 Aug 12
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar
@@ -2260,7 +2260,7 @@
 						*'cpoptions'* *'cpo'* *cpo*
 'cpoptions' 'cpo'	string	(Vim default: "aABceFsz",
 				 Vi default:  all flags, except "#{|&/\."
-                                 |$VIM_POSIX|:  all flags)
+				 |$VIM_POSIX|:  all flags)
 			global
 	A sequence of single character flags.  When a character is present
 	this indicates Vi-compatible behavior.  This is used for things where