[libxml2] Move AM_MAINTAINER_MODE to AM section

[Nick Wellnhofer <nwellnhof src gnome org>]

commit c8ccb727b167a864a2a5dc2112a4900b69cc58c0
Author: Nick Wellnhofer <wellnhofer aevum de>
Date:   Sat Apr 2 18:03:44 2022 +0200

    Move AM_MAINTAINER_MODE to AM section

 configure.ac | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/configure.ac b/configure.ac
index 0b33eda8..eeeb66d8 100644
--- a/configure.ac
+++ b/configure.ac
@@ -8,7 +8,6 @@ m4_define([MICRO_VERSION], 13)
 AC_INIT([libxml2],[MAJOR_VERSION.MINOR_VERSION.MICRO_VERSION])
 AC_CONFIG_SRCDIR([entities.c])
 AC_CONFIG_HEADERS([config.h])
-AM_MAINTAINER_MODE([enable])
 AC_CONFIG_MACRO_DIR([m4])
 AC_CANONICAL_HOST
 
@@ -41,6 +40,7 @@ AC_SUBST(LIBXML_VERSION_EXTRA)
 VERSION=${LIBXML_VERSION}
 
 AM_INIT_AUTOMAKE([1.15 foreign no-dist-gzip dist-xz])
+AM_MAINTAINER_MODE([enable])
 AM_SILENT_RULES([yes])
 
 dnl Checks for programs.