autoconf: * lib/autoconf/functions.m4 (HAVE_DOPRNT): Fix missing-comma typo.

https://github.com/libsdl-org/autoconf/commit/2165f1c3926d1021776dadc70021f3e22b7df53d

From 2165f1c3926d1021776dadc70021f3e22b7df53d Mon Sep 17 00:00:00 2001
From: Paul Eggert <[EMAIL REDACTED]>
Date: Fri, 21 Jun 2013 11:00:38 -0700
Subject: [PATCH] * lib/autoconf/functions.m4 (HAVE_DOPRNT): Fix missing-comma
 typo.

Reported by Peter Breitenlohner in:
http://lists.gnu.org/archive/html/autoconf-patches/2013-06/msg00007.html
(cherry picked from commit 3d9fa1399e13b8a37c9ace6d812521d51995d95f)
---
 lib/autoconf/functions.m4 | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/autoconf/functions.m4 b/lib/autoconf/functions.m4
index a7b1960f..39ef86d6 100644
--- a/lib/autoconf/functions.m4
+++ b/lib/autoconf/functions.m4
@@ -1953,7 +1953,7 @@ AU_ALIAS([AC_VFORK], [AC_FUNC_FORK])
 # Why the heck is that _doprnt does not define HAVE__DOPRNT???
 # That the logical name!
 AC_DEFUN([AC_FUNC_VPRINTF],
-[AC_CHECK_FUNCS(vprintf, []
+[AC_CHECK_FUNCS(vprintf, [],
 [AC_CHECK_FUNC(_doprnt,
 	       [AC_DEFINE(HAVE_DOPRNT, 1,
 			  [Define to 1 if you don't have `vprintf' but do have