[gdm] configure: bump to 3.20.1

[Tim Lunn <timl src gnome org>]

commit dd78fec0a4514c9a163e168d7246600c277e0437
Author: Tim Lunn <tim feathertop org>
Date:   Tue Apr 19 15:04:33 2016 +1000

    configure: bump to 3.20.1

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 3dec900..714fb53 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,7 +1,7 @@
 
 AC_PREREQ([2.60])
 AC_INIT([gdm],
-        [3.20.0],
+        [3.20.1],
         [http://bugzilla.gnome.org/enter_bug.cgi?product=gdm])
 
 AC_CONFIG_SRCDIR([daemon/gdm-manager.c])