- document two escape sequences as extensions in STANDARDS

- document undefined behaviour for unlisted formats in
combination with `#'; guenther helped me organise this into a saner
piece of text

ok guenther

diff --git a/usr.bin/printf/printf.1 b/usr.bin/printf/printf.1
index 2e2ef45..b345c1d 100644 (file)
--- a/usr.bin/printf/printf.1
+++ b/usr.bin/printf/printf.1
@@ -1,4 +1,4 @@
-.\"    $OpenBSD: printf.1,v 1.25 2010/10/21 13:20:51 jmc Exp $
+.\"    $OpenBSD: printf.1,v 1.26 2014/05/13 20:37:48 jmc Exp $
 .\"
 .\" Copyright (c) 1989, 1990 The Regents of the University of California.
 .\" All rights reserved.
@@ -32,7 +32,7 @@
 .\"
 .\"    from: @(#)printf.1      5.11 (Berkeley) 7/24/91
 .\"
-.Dd $Mdocdate: October 21 2010 $
+.Dd $Mdocdate: May 13 2014 $
 .Dt PRINTF 1
 .Os
 .Sh NAME
@@ -122,12 +122,6 @@ in the following order:
 Specifies that the value should be printed in an
 .Dq alternate form .
 For the
-.Cm c ,
-.Cm d ,
-and
-.Cm s
-formats, this option has no effect.
-For the
 .Cm o
 format the precision of the number is increased to force the first
 character of the output string to a zero.
@@ -157,6 +151,7 @@ and
 .Cm G
 formats, trailing zeros are not removed from the result as they
 would otherwise be.
+For all other formats, behaviour is undefined.
 .It Cm \&\-
 Specifies the
 .Em left adjustment
@@ -368,6 +363,8 @@ The
 utility is compliant with the
 .St -p1003.1-2008
 specification.
+.Pp
+The escape sequences \ee and \e' are extensions to that specification.
 .Sh HISTORY
 The
 .Nm