- Fix a misbinding of <Bsp>

When curses gives no code for Ctrl+Shift+Delete, do not fall back
to KEY_BACKSPACE, because then ^H and/or <Backspace> get bound to
'cutwordleft'.

This fixes https://savannah.gnu.org/bugs/?54642.

Bug was introduced with version 3.0, commit e6429e78.

Reported by:	eadler

editors/nano/Makefile

@@ -3,6 +3,7 @@
 
 PORTNAME=	nano
 PORTVERSION=	3.0
+PORTREVISION=	1
 CATEGORIES=	editors
 MASTER_SITES=	http://www.nano-editor.org/dist/v${PORTVERSION:R}/ GNU
 

editors/nano/files/patch-src_nano.c

@@ -0,0 +1,11 @@
+--- src/nano.c.orig	2018-09-14 11:02:24 UTC
++++ src/nano.c
+@@ -2580,7 +2580,7 @@ int main(int argc, char **argv)
+ 	controlhome = get_keycode("kHOM5", CONTROL_HOME);
+ 	controlend = get_keycode("kEND5", CONTROL_END);
+ 	controldelete = get_keycode("kDC5", CONTROL_DELETE);
+-	controlshiftdelete = get_keycode("kDC6", KEY_BACKSPACE);
++	controlshiftdelete = get_keycode("kDC6", CONTROL_SHIFT_DELETE);
+ #ifndef NANO_TINY
+ 	/* Ask for the codes for Shift+Control+Left/Right/Up/Down. */
+ 	shiftcontrolleft = get_keycode("kLFT6", SHIFT_CONTROL_LEFT);

editors/nano/files/patch-src_nano.h

@@ -0,0 +1,10 @@
+--- src/nano.h.orig	2018-09-14 11:02:29 UTC
++++ src/nano.h
+@@ -588,6 +588,7 @@ enum
+ #define SHIFT_CONTROL_DOWN 0x414
+ #define SHIFT_CONTROL_HOME 0x415
+ #define SHIFT_CONTROL_END 0x416
++#define CONTROL_SHIFT_DELETE 0x417
+ #define ALT_LEFT 0x421
+ #define ALT_RIGHT 0x422
+ #define ALT_UP 0x423