closing file desriptors via ">&-" in /bin/sh does not work.
	it seems the commits to redir.c going to 4.6 caused this.

	http://www.freebsd.org/cgi/cvsweb.cgi/src/bin/sh/redir.c.diff?r1=1.12.2.1&r2=1.12.2.2

Fix: 

I did reinsert the close(fd); in line 148 in redir.c which fixed
	the problem, but I do not understand the code in redir.c really,
	so I have no idea about any side effects this could have.

 			if (!try) {
 				sv->renamed[fd] = i;
+				close(fd);
 			}


thanks - Moritz
How-To-Repeat: 	the below command should produce *no* output:

	# uname -r
	4.6-RELEASE-p1
	# /bin/sh -c 'echo "ha" >&-'
	ha
	#

	from the manpage:

            [n]>&-        close stdout (or file descriptor n)