autoconf: doc: fix another bad @xref

From 19baa494541341583a698488af60c175ac46070c Mon Sep 17 00:00:00 2001
From: Eric Blake <[EMAIL REDACTED]>
Date: Thu, 3 May 2012 09:28:20 -0600
Subject: [PATCH] doc: fix another bad @xref

Obviously, I didn't fully test commit f35498d.

* doc/autoconf.texi (Limitations of Builtins): Add a comma.

Signed-off-by: Eric Blake <>
(cherry picked from commit 926a43c86d0c6c896079fd0f1363f943075e43b7)
 doc/autoconf.texi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/doc/autoconf.texi b/doc/autoconf.texi
index 34ca2137..393e38f2 100644
--- a/doc/autoconf.texi
+++ b/doc/autoconf.texi
@@ -17874,7 +17874,7 @@ for an @command{echo} that does not interpret @samp{\} or leading
 @samp{-}. With Solaris @command{ksh}, it is possible to use @code{print
 -r --} for this role instead.
-@xref{echo, , Limitations of Shell Builtins} for a discussion of
+@xref{echo, , Limitations of Shell Builtins}, for a discussion of
 portable alternatives to both @command{printf} and @command{echo}.