Update hexcurse to 1.60.0.

Notable changes:

- Fix the license marker, hexcurse is GPLv2+ licensed
- Switch to using GitHub, the old HOMEPAGE/MASTER_SITES domain expired
- Add a patch from upstream to show help if no filename argument is
  supplied, otherwise it's not possible to quit the editor

editors/hexcurse/Makefile

@@ -1,20 +1,18 @@
-# $OpenBSD: Makefile,v 1.15 2019/07/17 14:49:21 danj Exp $
+# $OpenBSD: Makefile,v 1.16 2019/11/17 21:03:29 fcambus Exp $
 
 COMMENT=	user-friendly ncurses-based hexeditor with many features
 
-DISTNAME=	hexcurse-1.55
+GH_ACCOUNT=	lonnygomes
+GH_PROJECT=	hexcurse
+GH_TAGNAME=	v1.60.0
+
 CATEGORIES=	editors
-REVISION =	2
 
-HOMEPAGE=	http://www.jewfish.net/description.php?title=HexCurse
-
-# GPL
+# GPLv2+
 PERMIT_PACKAGE=	Yes
 
 WANTLIB=		c curses
 
-MASTER_SITES=	http://jewfish.net/downloads/
-
 CONFIGURE_STYLE= gnu
 
 .include <bsd.port.mk>

editors/hexcurse/distinfo

@@ -1,2 +1,2 @@
-SHA256 (hexcurse-1.55.tar.gz) = uNWJ+ArPpZD93WDZSCz2ujiylb94WuTgr/N7WrQ2yxY=
-SIZE (hexcurse-1.55.tar.gz) = 113512
+SHA256 (hexcurse-1.60.0.tar.gz) = 9pGeSoJO41TwA/DELkxM75ipOqfjqkScrt0T+aLbVTA=
+SIZE (hexcurse-1.60.0.tar.gz) = 171904

editors/hexcurse/patches/patch-src_getopt_c

@@ -1,22 +0,0 @@
-$OpenBSD: patch-src_getopt_c,v 1.1 2010/05/23 16:42:07 espie Exp $
---- src/getopt.c.orig	Thu Mar 21 17:55:54 2002
-+++ src/getopt.c	Sun May 23 18:41:03 2010
-@@ -32,6 +32,7 @@
- #undef optind
- #undef alloca
- 
-+#if 0
- /* The following modification was submited by Claudio Fanin.  This change *
-  * enables hexcurse to be compiled with SGI's proprietary compiler        */
- #ifdef _SGIAPI
-@@ -39,8 +40,9 @@
- #else
- char *alloca ();
- #endif
--#define __alloca      alloca
- /* end of modification */
-+#endif
-+#define __alloca      alloca
- 
- #ifdef HAVE_OPTIND
- extern char* optarg;

editors/hexcurse/patches/patch-src_hexcurse_c

@@ -0,0 +1,25 @@
+$OpenBSD: patch-src_hexcurse_c,v 1.1 2019/11/17 21:03:29 fcambus Exp $
+
+Show help if no filename argument is supplied, otherwise it's not possible
+to quit the editor.
+
+Upstream commit 37f94f2c1d0a3cc5110b2771e02ed894522d65d3.
+
+Index: src/hexcurse.c
+--- src/hexcurse.c.orig
++++ src/hexcurse.c
+@@ -217,9 +217,13 @@ off_t parseArgs(int argc, char *argv[])
+         fpINfilename = strdup(argv[0]);
+     }
+ 
+-    if (fpINfilename && strcmp(fpINfilename, ""))
++    if (fpINfilename == NULL) {
++        print_usage();
++        exit(-1);
++    } else if (fpINfilename && strcmp(fpINfilename, "")) {
+         if ((fpIN = fopen(fpINfilename, "r")) == NULL)
+             exit_err("Could not open file");
++    }
+ 
+     return ((fpIN != NULL) ? maxLoc(fpIN):0);		/* return file length */
+ }