From 8d598fb33d338fc09a26e083bbb26c7287e06349 Mon Sep 17 00:00:00 2001 From: Jim Meyering Date: Sun, 10 Jan 1999 22:06:15 +0000 Subject: *** empty log message *** --- doc/textutils.texi | 1 + 1 file changed, 1 insertion(+) (limited to 'doc') diff --git a/doc/textutils.texi b/doc/textutils.texi index dbb8393ac..032f2bdfb 100644 --- a/doc/textutils.texi +++ b/doc/textutils.texi @@ -2337,6 +2337,7 @@ Print only duplicate lines. Print all duplicate lines and only duplicate lines. This option is useful mainly in conjunction with other options e.g., to ignore case or to compare only selected fields. +This is a GNU extension. @c FIXME: give an example showing *how* it's useful @item -u -- cgit v1.2.3-54-g00ecf