Importing usr.bin/mesg

Replaces commands/mesg. No Minix-specific changes needed.

Change-Id: Ief22ad7f050f8083d0b43a4ea90b348c504d99a2

man/man1/Makefile

@@ -10,7 +10,7 @@ MAN=	ash.1 at.1 \
 	isodir.1 isoinfo.1 isoread.1 \
 	last.1 loadfont.1 loadkeys.1 logger.1 \
 	look.1 lp.1 lspci.1 mail.1  \
-	mesg.1 mixer.1 \
+	mixer.1 \
 	mkproto.1 mount.1 mt.1 od.1 \
 	paste.1 ping.1 playwave.1 prep.1 \
 	profile.1 ps.1 rcp.1 recwave.1 \

man/man1/mesg.1

@@ -1,38 +0,0 @@
-.\"	@(#)mesg.1	6.1 (Berkeley) 4/29/85
-.\"
-.TH MESG 1 "April 29, 1985"
-.AT 3
-.SH NAME
-mesg \- permit or deny messages
-.SH SYNOPSIS
-.B mesg
-[
-.B n
-] [
-.B y
-]
-.SH DESCRIPTION
-.B Mesg
-with argument
-.B n
-forbids messages via
-.B write
-and
-.BR talk (1)
-by revoking non-user
-write permission on the user's terminal.
-.B Mesg
-with argument
-.B y
-reinstates permission.
-All by itself,
-.B mesg
-reports the current state without changing it.
-.SH FILES
-/dev/tty*
-.SH "SEE ALSO"
-.BR write (1),
-.BR talk (1).
-.SH DIAGNOSTICS
-Exit status is 0 if messages are receivable,
-1 if not, 2 on error.