[gnome-system-log] configure.ac: Enable maintainer mode by default

[Javier JardÃn <jjardon src gnome org>]

commit 1eeebdc120e08a380c08a45dd7f69d76b5434db5
Author: Javier JardÃn <jjardon gnome org>
Date:   Wed Oct 31 23:24:07 2012 +0900

    configure.ac: Enable maintainer mode by default
    
    https://mail.gnome.org/archives/desktop-devel-list/2011-September/msg00064.html

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 41dea77..8bd8474 100644
--- a/configure.ac
+++ b/configure.ac
@@ -11,7 +11,7 @@ AC_CANONICAL_TARGET
 
 AM_INIT_AUTOMAKE([1.11 dist-xz no-dist-gzip foreign])
 AM_SILENT_RULES([yes])
-AM_MAINTAINER_MODE
+AM_MAINTAINER_MODE([enable])
 
 GETTEXT_PACKAGE=AC_PACKAGE_NAME
 AC_SUBST(GETTEXT_PACKAGE)