$NetBSD: patch-gcc_doc_gcc.texi,v 1.1 2017/01/22 12:22:46 maya Exp $

fix build with newer texinfo.

--- gcc/doc/gcc.texi.orig	2015-06-23 07:35:08.000000000 +0000
+++ gcc/doc/gcc.texi
@@ -85,9 +85,9 @@ Published by:
 @item GNU Press
 @tab Website: www.gnupress.org
 @item a division of the
-@tab General: @tex press@@gnu.org @end tex
+@tab General: @email{press@@gnu.org}
 @item Free Software Foundation
-@tab Orders:  @tex sales@@gnu.org @end tex
+@tab Orders:  @email{sales@@gnu.org}
 @item 51 Franklin Street, Fifth Floor
 @tab Tel 617-542-5942
 @item Boston, MA 02110-1301 USA