autoconf 2.69

Upgrade autoconf to version 2.69 and adjust the patch only to deal
with the different line number.

Closes Homebrew/homebrew#11866.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>

Formula/autoconf.rb

@@ -2,9 +2,9 @@ require 'formula'
 
 class Autoconf < Formula
   homepage 'http://www.gnu.org/software/autoconf'
-  url 'http://ftpmirror.gnu.org/autoconf/autoconf-2.68.tar.gz'
-  mirror 'http://ftp.gnu.org/gnu/autoconf/autoconf-2.68.tar.gz'
-  md5 'c3b5247592ce694f7097873aa07d66fe'
+  url 'http://ftpmirror.gnu.org/autoconf/autoconf-2.69.tar.gz'
+  mirror 'http://ftp.gnu.org/gnu/autoconf/autoconf-2.69.tar.gz'
+  sha1 '562471cbcb0dd0fa42a76665acf0dbb68479b78a'
 
   if MacOS.xcode_version.to_f < 4.3 or File.file? "/usr/bin/autoconf"
     keg_only "Xcode (up to and including 4.2) provides (a rather old) Autoconf."
@@ -27,11 +27,9 @@ end
 
 
 __END__
-diff --git a/bin/autoreconf.in b/bin/autoreconf.in
-index 192c8fa..70a1d72 100644
---- a/bin/autoreconf.in
-+++ b/bin/autoreconf.in
-@@ -112,7 +112,7 @@ my $autoheader = $ENV{'AUTOHEADER'} || '@bindir@/@autoheader-name@';
+--- a/bin/autoreconf.in	2012-04-24 15:00:28.000000000 -0700
++++ b/bin/autoreconf.in	2012-04-24 21:51:41.000000000 -0700
+@@ -111,7 +111,7 @@
  my $autom4te   = $ENV{'AUTOM4TE'}   || '@bindir@/@autom4te-name@';
  my $automake   = $ENV{'AUTOMAKE'}   || 'automake';
  my $aclocal    = $ENV{'ACLOCAL'}    || 'aclocal';