Update runtime files.

runtime/doc/eval.txt

@@ -1,4 +1,4 @@
-*eval.txt*	For Vim version 8.2.  Last change: 2021 Feb 10
+*eval.txt*	For Vim version 8.2.  Last change: 2021 Mar 10
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar
@@ -5300,6 +5300,9 @@ getcharpos({expr})
 		Get the position for {expr}. Same as |getpos()| but the column
 		number in the returned List is a character index instead of
 		a byte index.
+		If |getpos()| returns a very large column number, such as
+		2147483647, then getcharpos() will return the character index
+		of the last character.
 
 		Example:
 		With the cursor on '세' in line 5 with text "여보세요": >
@@ -5779,6 +5782,8 @@ getpos({expr})	Get the position for {expr}.  For possible values of {expr}
 		The column number in the returned List is the byte position
 		within the line. To get the character position in the line,
 		use |getcharpos()|
+		The column number can be very large, e.g. 2147483647, in which
+		case it means "after the end of the line".
 		This can be used to save and restore the position of a mark: >
 			let save_a_mark = getpos("'a")
 			...
@@ -7450,7 +7455,8 @@ matchaddpos({group}, {pos} [, {priority} [, {id} [, {dict}]]])
 		to be used when fast match additions and deletions are
 		required, for example to highlight matching parentheses.
 
-		The list {pos} can contain one of these items:
+		{pos} is a list of positions.  Each position can be one of
+		these:
 		- A number.  This whole line will be highlighted.  The first
 		  line has number 1.
 		- A list with one number, e.g., [23]. The whole line with this
@@ -7463,7 +7469,7 @@ matchaddpos({group}, {pos} [, {priority} [, {id} [, {dict}]]])
 		- A list with three numbers, e.g., [23, 11, 3]. As above, but
 		  the third number gives the length of the highlight in bytes.
 
-		The maximum number of positions is 8.
+		The maximum number of positions in {pos} is 8.
 
 		Example: >
 			:highlight MyGroup ctermbg=green guibg=green
@@ -7472,8 +7478,7 @@ matchaddpos({group}, {pos} [, {priority} [, {id} [, {dict}]]])
 			:call matchdelete(m)
 
 <		Matches added by |matchaddpos()| are returned by
-		|getmatches()| with an entry "pos1", "pos2", etc., with the
-		value a list like the {pos} item.
+		|getmatches()|.
 
 		Can also be used as a |method|: >
 			GetGroup()->matchaddpos([23, 11])
@@ -10273,7 +10278,8 @@ str2nr({expr} [, {base} [, {quoted}]])				*str2nr()*
 
 strcharpart({src}, {start} [, {len}])			*strcharpart()*
 		Like |strpart()| but using character index and length instead
-		of byte index and length.
+		of byte index and length.  Composing characters are counted
+		separately.
 		When a character index is used where a character does not
 		exist it is assumed to be one character.  For example: >
 			strcharpart('abc', -1, 2)
@@ -13142,7 +13148,7 @@ text...
 			Cannot be followed by a comment.
 			Examples: >
 		:execute "buffer" nextbuf
-		:execute "normal" count . "w"
+		:execute "normal" count .. "w"
 <
 			":execute" can be used to append a command to commands
 			that don't accept a '|'.  Example: >
@@ -13158,8 +13164,8 @@ text...
 			file names.  The |fnameescape()| function can be used
 			for Vim commands, |shellescape()| for |:!| commands.
 			Examples: >
-		:execute "e " . fnameescape(filename)
-		:execute "!ls " . shellescape(filename, 1)
+		:execute "e " .. fnameescape(filename)
+		:execute "!ls " .. shellescape(filename, 1)
 <
 			Note: The executed string may be any command-line, but
 			starting or ending "if", "while" and "for" does not