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

lib/libc/string/bcopy.3

@@ -29,7 +29,7 @@
 .\" SUCH DAMAGE.
 .\"
 .\"     from: @(#)bcopy.3	8.1 (Berkeley) 6/4/93
-.\"	$NetBSD: bcopy.3,v 1.14 2012/05/05 21:24:19 dholland Exp $
+.\"	$NetBSD: bcopy.3,v 1.15 2015/06/20 04:18:00 dholland Exp $
 .\"
 .Dd May 5, 2012
 .Dt BCOPY 3
@@ -79,7 +79,7 @@ arguments in the opposite order from these.
 .Xr strncpy 3
 .Sh STANDARDS
 The
-.Fn bcmp
+.Fn bcopy
 function conforms to
 .St -p1003.1-2001 .
 The