(Fstring): Add usage: string to doc string.

diff --git a/src/charset.c b/src/charset.c
index 7c50d245ebe0475a8274ed8ee86fed7ddd7fdcc9..445ecbd1296240e6e0c0d43c8dcc8e3ec37f9fb9 100644 (file)
--- a/src/charset.c
+++ b/src/charset.c
@@ -1629,7 +1629,8 @@ str_as_unibyte (str, bytes)
 
 \f
 DEFUN ("string", Fstring, Sstring, 1, MANY, 0,
-       doc: /* Concatenate all the argument characters and make the result a string.  */)
+  doc: /* Concatenate all the argument characters and make the result a string.
+usage: (string &rest CHARACTERS)  */)
      (n, args)
      int n;
      Lisp_Object *args;