(get_conn_by_number): Document that it returns NULL if the session

	doesn't exist.

src/server/internal-connections.h

 /*
- * $Id: internal-connections.h,v 0.9 2003/08/22 08:53:12 ceder Exp $
+ * $Id: internal-connections.h,v 0.10 2003/08/22 20:33:20 ceder Exp $
  * Copyright (C) 1991, 2002  Lysator Academic Computer Association.
  *
  * This file is part of the LysKOM server.
@@ -23,7 +23,7 @@
  * Please report bugs at http://bugzilla.lysator.liu.se/. 
  */
 /*
- * $Id: internal-connections.h,v 0.9 2003/08/22 08:53:12 ceder Exp $
+ * $Id: internal-connections.h,v 0.10 2003/08/22 20:33:20 ceder Exp $
  *
  * internal-connections.c
  *
@@ -37,6 +37,7 @@ extern void
 kill_client(Connection *cp);
 
 
+/* Return a Connection, or NULL if the specified session doesn't exist. */
 extern Connection *
 get_conn_by_number (Session_no session_no);