NetBSD re-synchronization of the source tree

This brings our tree to NetBSD 7.0, as found on -current on the
10-10-2015.

This updates:
 - LLVM to 3.6.1
 - GCC to GCC 5.1
 - Replace minix/commands/zdump with usr.bin/zdump
 - external/bsd/libelf has moved to /external/bsd/elftoolchain/
 - Import ctwm
 - Drop sprintf from libminc

Change-Id: I149836ac18e9326be9353958bab9b266efb056f0

external/bsd/pkg_install/dist/bpm/bpm.1

@@ -1,4 +1,4 @@
-.\" $NetBSD: bpm.1,v 1.4 2013/07/20 21:40:04 wiz Exp $ */
+.\" $NetBSD: bpm.1,v 1.5 2014/03/18 18:20:36 riastradh Exp $ */
 .\"
 .\" Copyright (c) 2003,2009 The NetBSD Foundation, Inc.
 .\" All rights reserved.

external/bsd/pkg_install/dist/create/pkg_create.1

@@ -1,4 +1,4 @@
-.\" $NetBSD: pkg_create.1,v 1.1.1.8 2010/04/23 20:54:08 joerg Exp $
+.\" $NetBSD: pkg_create.1,v 1.2 2015/10/10 10:08:12 mbalmer Exp $
 .\"
 .\" FreeBSD install - a package for the installation and maintenance
 .\" of non-core utilities.
@@ -24,7 +24,7 @@
 .\" [jkh] Took John's changes back and made some additional extensions for
 .\" better integration with FreeBSD's new ports collection.
 .\"
-.Dd January 20, 2010
+.Dd October 10, 2015
 .Dt PKG_CREATE 1
 .Os
 .Sh NAME
@@ -494,11 +494,12 @@ command first appeared in
 .Sh AUTHORS
 .Bl -tag -width indent -compact
 .It Jordan Hubbard
-most of the work
+did most of the work.
 .It John Kohl
 refined it for
-.Nx
+.Nx .
 .It Hubert Feyrer
+added
 .Nx
 wildcard dependency processing, pkgdb, pkg size recording etc.
 .El

external/bsd/pkg_install/dist/info/pkg_info.1

@@ -1,4 +1,4 @@
-.\" $NetBSD: pkg_info.1,v 1.1.1.6 2013/04/20 15:26:53 wiz Exp $
+.\" $NetBSD: pkg_info.1,v 1.2 2015/04/28 09:48:30 prlw1 Exp $
 .\"
 .\" FreeBSD install - a package for the installation and maintenance
 .\" of non-core utilities.
@@ -47,7 +47,7 @@ command.
 .Pp
 The
 .Ar pkg-name
-may be the name of an installed package (with our without version), a
+may be the name of an installed package (with or without version), a
 pattern matching several installed packages (see the
 .Sx PACKAGE WILDCARDS
 section for a description of possible patterns),

external/bsd/pkg_install/dist/lib/lib.h

@@ -1,4 +1,4 @@
-/* $NetBSD: lib.h,v 1.6 2010/06/26 00:17:13 joerg Exp $ */
+/* $NetBSD: lib.h,v 1.7 2014/01/07 02:15:27 joerg Exp $ */
 
 /* from FreeBSD Id: lib.h,v 1.25 1997/10/08 07:48:03 charnier Exp */
 
@@ -421,7 +421,7 @@ char *xstrdup(const char *);
 void *xrealloc(void *, size_t);
 void *xcalloc(size_t, size_t);
 void *xmalloc(size_t);
-char *xasprintf(const char *, ...);
+char *xasprintf(const char *, ...) __printflike(1, 2);
 
 /* Externs */
 extern Boolean Verbose;

external/bsd/pkg_install/dist/lib/pkg_install.conf.5.in

@@ -1,4 +1,4 @@
-.\"	$NetBSD: pkg_install.conf.5.in,v 1.1.1.13 2013/04/20 15:26:53 wiz Exp $
+.\"	$NetBSD: pkg_install.conf.5.in,v 1.2 2015/04/28 09:48:30 prlw1 Exp $
 .\"
 .\" Copyright (c) 2008, 2009, 2012 The NetBSD Foundation, Inc.
 .\" All rights reserved.
@@ -57,7 +57,7 @@ License names are case-sensitive.
 .It Dv ACTIVE_FTP
 Force the use of active FTP.
 .It Dv CACHE_INDEX
-Cache directory listenings in memory.
+Cache directory listings in memory.
 This avoids retransfers of the large directory index for HTTP and is
 enabled by default.
 .It Dv CERTIFICATE_ANCHOR_PKGS