[gdm] configure: bump to 3.27.3

[Ray Strode <halfline src gnome org>]

commit 87c5edd12a3f3e33015ff117984f18acddb2d36f
Author: Ray Strode <rstrode redhat com>
Date:   Wed Dec 13 11:04:24 2017 -0500

    configure: bump to 3.27.3

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 3c91520..ea42c47 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,7 +1,7 @@
 
 AC_PREREQ([2.60])
 AC_INIT([gdm],
-        [3.26.1],
+        [3.27.3],
         [http://bugzilla.gnome.org/enter_bug.cgi?product=gdm])
 
 AC_CONFIG_SRCDIR([daemon/gdm-manager.c])