--- a/runtime/doc/eval.txt
+++ b/runtime/doc/eval.txt
@@ -1985,7 +1985,7 @@ split( {expr} [, {pat} [, {keepempty}]])
 sqrt( {expr})			Float	square root of {expr}
 str2float( {expr})		Float	convert String to Float
 str2nr( {expr} [, {base}])	Number	convert String to Number
-strchars( {expr})		Number	character length of the String {expr}
+strchars( {expr} [, {skipcc}])	Number	character length of the String {expr}
 strdisplaywidth( {expr} [, {col}]) Number display length of the String {expr}
 strftime( {format}[, {time}])	String	time in specified format
 stridx( {haystack}, {needle}[, {start}])
@@ -5913,15 +5913,11 @@ string({expr})	Return {expr} converted t
 							*strlen()*
 strlen({expr})	The result is a Number, which is the length of the String
 		{expr} in bytes.
-		If you want to count the number of multi-byte characters (not
-		counting composing characters) use something like this: >
-
-			:let len = strlen(substitute(str, ".", "x", "g"))
-<
 		If the argument is a Number it is first converted to a String.
 		For other types an error is given.
-		Also see |len()|, |strchars()|, |strdisplaywidth()| and
-		|strwidth()|.
+		If you want to count the number of multi-byte characters use
+		|strchars()|.
+		Also see |len()|, |strdisplaywidth()| and |strwidth()|.
 
 strpart({src}, {start}[, {len}])			*strpart()*
 		The result is a String, which is part of {src}, starting from