runtime(doc): improve the vim-shebang example

Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/runtime/doc/various.txt b/runtime/doc/various.txt
index d9bcdfa..1ce8927 100644
--- a/runtime/doc/various.txt
+++ b/runtime/doc/various.txt
@@ -1,4 +1,4 @@
-*various.txt*   For Vim version 9.1.  Last change: 2024 Jun 15
+*various.txt*   For Vim version 9.1.  Last change: 2024 Jun 17
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar
@@ -141,9 +141,15 @@
 							*:#!* *vim-shebang*
 :#!{anything}		Ignored, so that you can start a Vim script with: >
 				#!vim -S
-				echo "this is a Vim script"
-				quit
+				let mylogbook='$HOME/logbook.md'
+				exe $':e {mylogbook}'
+				$
+				put ='## ' .. strftime('%d. %b %Y')
+				norm! o
 <
+			Make that script executable and run it to create a
+			new diary entry.
+
 							*:z* *E144*
 :[range]z[+-^.=][count]	Display several lines of text surrounding the line
 			specified with [range], or around the current line