(Frecent_keys): Doc fix.

src/keyboard.c

@@ -3684,7 +3684,7 @@ Actually, the value is nil only if we can be sure that no input is available.")
 }
 
 DEFUN ("recent-keys", Frecent_keys, Srecent_keys, 0, 0, 0,
-  "Return vector of last 100 chars read from terminal.")
+  "Return vector of last 100 events, not counting those from keyboard macros.")
   ()
 {
   Lisp_Object *keys = XVECTOR (recent_keys)->contents;