strings.h -> string.h. Makes it build on DragonFly and probably some others.

net/tcpdmerge/distinfo

@@ -1,4 +1,4 @@
-$NetBSD: distinfo,v 1.3 2005/02/24 12:14:05 agc Exp $
+$NetBSD: distinfo,v 1.4 2009/06/05 10:10:07 hasso Exp $
 
 SHA1 (tcpdmerge.c) = 6cf440a4f4802c28ab1cdbc71a6b1845efe062d6
 RMD160 (tcpdmerge.c) = 27c46ae47f4b3a80bdbb7eb098ae0d96a3ac02d8
@@ -6,3 +6,4 @@ Size (tcpdmerge.c) = 9944 bytes
 SHA1 (00README.TXT) = ee508be0ffc9004c3ef42d98cc3ce394081634be
 RMD160 (00README.TXT) = 8d7042c50beb9261acc33edfdb3f28d6886e8f76
 Size (00README.TXT) = 3388 bytes
+SHA1 (patch-aa) = 07d089acdf39fe1743f96afa3101c8a3f37e9174

net/tcpdmerge/patches/patch-aa

@@ -0,0 +1,13 @@
+$NetBSD: patch-aa,v 1.1 2009/06/05 10:10:07 hasso Exp $
+
+--- tcpdmerge.c.orig	2009-06-05 12:48:50 +0300
++++ tcpdmerge.c	2009-06-05 12:49:00 +0300
+@@ -45,7 +45,7 @@
+ #include <stdlib.h>
+ #include <sys/types.h>
+ #include <pcap.h>
+-#include <strings.h>
++#include <string.h>
+ #ifdef __STDC__
+ #include <stdarg.h>
+ #else