===================================================================
RCS file: /cvsrepo/anoncvs/cvs/src/usr.bin/sed/sed.1,v
retrieving revision 1.47
retrieving revision 1.48
diff -u -r1.47 -r1.48
--- src/usr.bin/sed/sed.1	2015/11/04 21:28:27	1.47
+++ src/usr.bin/sed/sed.1	2016/03/17 05:27:10	1.48
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: sed.1,v 1.47 2015/11/04 21:28:27 tedu Exp $
+.\"	$OpenBSD: sed.1,v 1.48 2016/03/17 05:27:10 bentley Exp $
 .\"
 .\" Copyright (c) 1992, 1993
 .\"	The Regents of the University of California.  All rights reserved.
@@ -32,7 +32,7 @@
 .\"
 .\"	from: @(#)sed.1	8.2 (Berkeley) 12/30/93
 .\"
-.Dd $Mdocdate: November 4 2015 $
+.Dd $Mdocdate: March 17 2016 $
 .Dt SED 1
 .Os
 .Sh NAME
@@ -511,6 +511,17 @@
 This is the same as specifying the
 .Fl n
 option on the command line.
+.El
+.Sh ENVIRONMENT
+.Bl -tag -width COLUMNS
+.It Ev COLUMNS
+If set to a positive integer,
+output from the
+.Ic l
+function is formatted to the given width in columns.
+Otherwise,
+.Nm
+defaults to the terminal with, or 80 columns if the output is not a terminal.
 .El
 .Sh EXIT STATUS
 .Ex -std sed