[gdm/gnome-3-18] configure: bump to 3.18.3

[Tim Lunn <timl src gnome org>]

commit 81618f0998ec3057a4ab37174c4b6a4ce6e5b47d
Author: Tim Lunn <tim feathertop org>
Date:   Thu Apr 14 15:43:10 2016 +1000

    configure: bump to 3.18.3

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 7b6346c..9ab6824 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,7 +1,7 @@
 
 AC_PREREQ([2.60])
 AC_INIT([gdm],
-        [3.18.2],
+        [3.18.3],
         [http://bugzilla.gnome.org/enter_bug.cgi?product=gdm])
 
 AC_CONFIG_SRCDIR([daemon/gdm-manager.c])