docs: mention what Open Group has marked legacy

Reviewed-by: Bruce Dubbs <bruce.dubbs@gmail.com>
Signed-off-by: Sami Kerola <kerolasa@iki.fi>

diff --git a/Documentation/deprecated.txt b/Documentation/deprecated.txt
index 2d43cb0aef073c8364f22cbaabcf42ead5dfdf35..7d2dac11362a33fdd952ca40dc08301510dee06e 100644 (file)
--- a/Documentation/deprecated.txt
+++ b/Documentation/deprecated.txt
@@ -58,3 +58,15 @@ Why: deprecated in favor of uname(1) or arch(1) from coreutils
 What:  last(1)
 Why:   nobody uses this implementation
 
+----------------------------
+
+The Single UNIX(TM) Specification, Version 2
+Copyright (C) 1997 The Open Group
+
+  Legacy utilities which are part util-linux package are:
+
+       col
+       line
+       pg
+
+  http://pubs.opengroup.org/onlinepubs/7908799/xcu/intro.html#tag_001_003_003