Update hexedit to 1.3.

Notable changes:

- Switch to GitHub and update HOMEPAGE
- Release tarball doesn't bundle a configure script, so the port now
  uses autoconf
- Update license marker to specify GPLv2+
- Drop the now useless patch
- Regenerate WANTLIB

OK jca@

editors/hexedit/Makefile

@@ -1,24 +1,26 @@
-# $OpenBSD: Makefile,v 1.25 2013/03/11 11:02:49 espie Exp $
+# $OpenBSD: Makefile,v 1.26 2017/08/21 20:17:59 fcambus Exp $
 
 COMMENT=	view and edit files in hexadecimal or ASCII
 
-DISTNAME=	hexedit-1.2.12
+GH_ACCOUNT=	pixel
+GH_PROJECT=	hexedit
+GH_TAGNAME=	1.3
+
 CATEGORIES=	editors
 
-MASTER_SITES=	http://www.chez.com/prigaux/	\
-		http://merd.net/pixel/
-EXTRACT_SUFX=	.src.tgz
+HOMEPAGE=	http://rigaux.org/hexedit.html
 
-HOMEPAGE=	http://www.chez.com/prigaux/hexedit.html
-
-# GPL
+# GPLv2+
 PERMIT_PACKAGE_CDROM=	Yes
 
-WANTLIB=		c curses
+WANTLIB=	c ncurses
+
+CONFIGURE_STYLE= autoconf
+AUTOCONF_VERSION= 2.69
 
-CONFIGURE_STYLE= gnu dest
 NO_TEST=	Yes
 
-WRKDIST=	${WRKDIR}/hexedit
+post-build:
+	m4 -DVERSION=${GH_TAGNAME} ${WRKSRC}/hexedit.1.in > ${WRKSRC}/hexedit.1
 
 .include <bsd.port.mk>

editors/hexedit/distinfo

@@ -1,2 +1,2 @@
-SHA256 (hexedit-1.2.12.src.tgz) = vP+/PRKFFsxOHaZEhYZvu19idU8q+DJ+elJ4VRhroQ8=
-SIZE (hexedit-1.2.12.src.tgz) = 65802
+SHA256 (hexedit-1.3.tar.gz) = iNSJ37iV4ouyRyYTc2/GoUcDT01LA487nReOaWm//XA=
+SIZE (hexedit-1.3.tar.gz) = 29620

editors/hexedit/patches/patch-hexedit_h

@@ -1,11 +0,0 @@
-$OpenBSD: patch-hexedit_h,v 1.2 2012/09/17 12:50:09 gonzalo Exp $
---- hexedit.h.orig	Tue Nov  8 13:16:47 2005
-+++ hexedit.h	Mon Sep  3 13:56:59 2012
-@@ -5,6 +5,7 @@
- #include <stdio.h>
- #include <stdlib.h>
- #include <string.h>
-+#include <sys/param.h>
- #include <sys/types.h>
- #include <sys/stat.h>
- #if HAVE_FCNTL_H