add a short EXAMPLES section;

wording from jmc@, example command tweaked by me,
based on a wordier patch from <David at Goerger dot info>
that used an idea from danj@ answering a question from millert@
triggered by a completely different patch from David Goerger;
OK jmc@ danj@

1 files changed, 7 insertions, 2 deletions

diff --git a/usr.bin/du/du.1 b/usr.bin/du/du.1
index 5df49530d4d..b9dbf989c35 100644
--- a/usr.bin/du/du.1
+++ b/usr.bin/du/du.1
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: du.1,v 1.35 2019/09/02 21:18:41 deraadt Exp $
+.\"	$OpenBSD: du.1,v 1.36 2020/01/30 16:05:14 schwarze Exp $
 .\"	$NetBSD: du.1,v 1.6 1996/10/18 07:20:31 thorpej Exp $
 .\"
 .\" Copyright (c) 1990, 1993
@@ -30,7 +30,7 @@
 .\"
 .\"	@(#)du.1	8.2 (Berkeley) 4/1/94
 .\"
-.Dd $Mdocdate: September 2 2019 $
+.Dd $Mdocdate: January 30 2020 $
 .Dt DU 1
 .Os
 .Sh NAME
@@ -147,6 +147,11 @@ option is specified.
 .El
 .Sh EXIT STATUS
 .Ex -std du
+.Sh EXAMPLES
+Display a summary of files and folders in the current directory,
+sorted by size:
+.Pp
+.Dl du -sh * .??* | sort -h
 .Sh SEE ALSO
 .Xr df 1 ,
 .Xr fts_open 3 ,