string.h is a standard header for getting protoypes for memset and friends.

Fixes build on DragonFly.

chat/i2cb/distinfo

@@ -1,4 +1,4 @@
-$NetBSD: distinfo,v 1.9 2007/03/17 14:33:13 rillig Exp $
+$NetBSD: distinfo,v 1.10 2009/06/05 09:36:15 hasso Exp $
 
 SHA1 (i2cb-6.0_ALPHA.tar.gz) = 6d2ddd234403fe33426ece3fd4de4104cf1a6257
 RMD160 (i2cb-6.0_ALPHA.tar.gz) = 2c0683c20939fe5709fa08b6e335cbee2574ecd8
@@ -8,7 +8,7 @@ SHA1 (patch-ab) = 358b366c16290d6d2326e72c281f977e49a8a98b
 SHA1 (patch-ac) = aa39fd72a66b1c5b3e0e19c4d6b279bc5a076816
 SHA1 (patch-ad) = 9dcb98fe3543d8e4a7b2af338606db8ffe271f56
 SHA1 (patch-ae) = 0f8765883c2b7e77394556405ee7fee7a054ad56
-SHA1 (patch-af) = 779ecab95384f8fa24000c90f6671317d6276c83
+SHA1 (patch-af) = fa29d029c736e929963749df7744bfbcc71d05d9
 SHA1 (patch-ag) = 5f78d326406e98d912acd0388d0bb98d2d4bd459
 SHA1 (patch-ah) = 1785c0f09a7a0f83b7cb886e9e749959b1753972
 SHA1 (patch-ai) = f2b83d20f6357dd6cb3e468b573c46d6123cae39

chat/i2cb/patches/patch-af

@@ -1,7 +1,16 @@
-$NetBSD: patch-af,v 1.2 2004/04/13 21:19:48 hubertf Exp $
+$NetBSD: patch-af,v 1.3 2009/06/05 09:36:15 hasso Exp $
 
---- src/contoport.c.orig	Tue Apr 13 22:29:28 2004
-+++ src/contoport.c
+--- src/contoport.c.orig	2000-03-16 00:13:28 +0200
++++ src/contoport.c	2009-06-05 11:30:39 +0300
+@@ -6,7 +6,7 @@
+ #include <sys/types.h>
+ #include <fcntl.h>
+ #include <sys/socket.h>
+-#include <strings.h>
++#include <string.h>
+ #include <unistd.h>
+ #include <netinet/in.h>
+ #include <netdb.h>
 @@ -14,14 +14,15 @@
  #include "icb.h"
  #include "externs.h"