net/libbgpdump: add patch from bitbucket

https://bitbucket.org/ripencc/bgpdump/issue/12/binary-garbage-at-the-end-of-output

PR:		192091
Submitted by:	citrin+pr@citrin.ru
Approved by:	mjl@luckie.org.nz (maintainer)

net/libbgpdump/Makefile

@@ -3,7 +3,7 @@
 
 PORTNAME=	libbgpdump
 PORTVERSION=	1.4.99.13
-PORTREVISION=	1
+PORTREVISION=	2
 CATEGORIES=	net
 MASTER_SITES=	http://www.ris.ripe.net/source/bgpdump/
 EXTRACT_SUFX=	.tgz

net/libbgpdump/files/patch-bgpdump.c

@@ -0,0 +1,13 @@
+--- bgpdump.c.old	2014-07-24 13:02:50.000000000 +0000
++++ bgpdump.c	2014-07-24 13:03:27.000000000 +0000
+@@ -164,10 +164,6 @@
+         exit(1);        
+     }
+ 
+-    // more efficient then line buffering
+-    char buffer[16000];
+-    setbuffer(stdout, buffer, sizeof buffer);
+-    
+     BGPDUMP *my_dump = bgpdump_open_dump(argv[0]);
+     
+     do {