Changed a comment to add support for rfc 931.

src/include/config.h

 /*
- * $Id: config.h,v 0.4 1991/10/29 05:13:39 ceder Exp $
+ * $Id: config.h,v 0.5 1992/03/31 20:52:09 ceder Exp $
  * Copyright (C) 1991  Lysator Academic Computer Association.
  *
  * This file is part of the LysKOM server.
@@ -151,8 +151,9 @@ extern const int MAX_CREA_MISC;   /* Sum of recipients, cc_recipients, comm_to
  *   STATISTIC_NAME	     (open after a SIGUSR1)
  *   Two TCP/IP ports	     (normal connections and mux-connections)
  *   One UDP/IP port	     (probably from -lresolv, but I'm not sure)
+ *   One TCP/IP port	     (if RFC_931 is defined)
  * Thus, the max number of connections is the number of available file
- * descriptors minus nine. This has not been fully tested for a long
+ * descriptors minus ten. This has not been fully tested for a long
  * while, so we subtract twelve just to be on the safe side. That still
  * gives 52 simultaneous users on a sun4, and that is enough for the
  * time beeing. (If you need more connections you can run a mux. Send