Update runtime files.

runtime/doc/vim9.txt

@@ -113,7 +113,7 @@ script and `:def` functions; details are below:
 	:%s/this/that
 - Executing a register with "@r" does not work, you can prepend a colon or use
   `:exe`: >
-  	:exe @a
+	:exe @a
 - Unless mentioned specifically, the highest |scriptversion| is used.
 - When defining an expression mapping, the expression will be evaluated in the
   context of the script where it was defined.
@@ -622,7 +622,7 @@ Additionally, a lambda can contain statements in {}: >
 	    }
 This can be useful for a timer, for example: >
 	var count = 0
- 	var timer = timer_start(500, (_) => {
+	var timer = timer_start(500, (_) => {
 		 count += 1
 		 echom 'Handler called ' .. count
 	     }, {repeat: 3})
@@ -824,7 +824,7 @@ White space is required around most operators.
 
 White space is required in a sublist (list slice) around the ":", except at
 the start and end: >
-	otherlist = mylist[v : count]  	# v:count has a different meaning
+	otherlist = mylist[v : count]	# v:count has a different meaning
 	otherlist = mylist[:]		# make a copy of the List
 	otherlist = mylist[v :]
 	otherlist = mylist[: v]
@@ -879,7 +879,7 @@ This works for alphanumeric characters, underscore and dash.  If you want to
 use another character, use a single or double quoted string: >
 	var dict = {'key with space': value}
 	var dict = {"key\twith\ttabs": value}
-	var dict = {'': value}  		# empty key
+	var dict = {'': value}			# empty key
 <							*E1139*
 In case the key needs to be an expression, square brackets can be used, just
 like in JavaScript: >
@@ -1402,7 +1402,7 @@ to a Vim9 function:
 	  echo line(1) .. line(2)
 
 - line continuation does not always require a backslash: >
-  	echo ['one',
+	echo ['one',
 		\ 'two',
 		\ 'three'
 		\ ]