net-mgmt/cdpd: Fix runtime on armv6

While here, pet portlint and define the 2-clause BSD license

PR:		208216
Submitted by:	Mikael Urankar (gmail)

net-mgmt/cdpd/Makefile

@@ -3,14 +3,18 @@
 
 PORTNAME=	cdpd
 PORTVERSION=	1.0.4.1
+PORTREVISION=	1
 CATEGORIES=	net-mgmt
 MASTER_SITES=	http://snar.spb.ru/prog/cdpd/
 
 MAINTAINER=	ports@FreeBSD.org
 COMMENT=	Daemon to send CDP/LLDP announces over ethernet
 
+LICENSE=	BSD2CLAUSE
+LICENSE_FILE=	${WRKSRC}/COPYRIGHT
+
+USES=		tar:tgz
 GNU_CONFIGURE=	yes
-EXTRACT_SUFX=	.tgz
 
 USE_RC_SUBR=	cdpd
 PLIST_FILES=	sbin/cdpd man/man8/cdpd.8.gz

net-mgmt/cdpd/files/patch-cdpd.c

@@ -0,0 +1,11 @@
+--- cdpd.c.orig	2016-03-22 18:37:16 UTC
++++ cdpd.c
+@@ -606,7 +606,7 @@ cdp_debug_packet(struct cdp_interface* c
+ int
+ main(int argc, char* argv[])
+ { 
+-	char c;
++	int c;
+ 	int timeout=60, ret=0;
+ 	unsigned char buffer[1600];
+ 	int offset;