[egg-list-box] Fix the warning message about AC_OUTPUT

[Bastien Nocera <hadess src gnome org>]

commit c0394d8e263ffbb2becdb574e80116c378cac223
Author: Ángel Guzmán Maeso <shakaran gmail com>
Date:   Thu Feb 21 11:53:04 2013 +0100

    Fix the warning message about AC_OUTPUT
    
    configure.ac:28: warning: AC_OUTPUT should be used without arguments.
    configure.ac:28: You should run autoupdate.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=694348

 configure.ac |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index c031a4f..1e76c7b 100644
--- a/configure.ac
+++ b/configure.ac
@@ -25,4 +25,6 @@ PKG_CHECK_MODULES(LISTBOX, [$pkg_modules])
 LISTBOX_PACKAGES="--pkg gtk+-3.0"
 AC_SUBST(LISTBOX_PACKAGES)
 
-AC_OUTPUT([egg-list-box-uninstalled.pc egg-flow-box-uninstalled.pc])
+AC_CONFIG_FILES([egg-list-box-uninstalled.pc egg-flow-box-uninstalled.pc])
+
+AC_OUTPUT