Re-add version.c which got lost in the update.

(This is not an official interface, but we want to be compatible.)
pointed out by Bernd Ernesti

lib/libpcap/Makefile

@@ -1,4 +1,4 @@
-# $NetBSD: Makefile,v 1.28 2006/04/25 18:36:44 drochner Exp $	
+# $NetBSD: Makefile,v 1.29 2006/05/02 09:59:26 drochner Exp $	
 
 .include <bsd.own.mk>
 
@@ -25,7 +25,7 @@ CPPFLAGS+=	-DINET6
 
 SRCS=	scanner.l savefile.c pcap.c pcap-bpf.c optimize.c nametoaddr.c \
 	inet.c grammar.y gencode.c fad-getad.c etherent.c bpf_image.c \
-	bpf_dump.c
+	bpf_dump.c version.c
 
 .PATH:	${NETBSDSRCDIR}/sys/net
 SRCS+=	bpf_filter.c

lib/libpcap/version.c

@@ -0,0 +1,3 @@
+/* $NetBSD: version.c,v 1.6 2006/05/02 09:59:26 drochner Exp $ */
+
+char pcap_version[] = "0.9.4";