[gdm] configure.ac: bump to 3.27.4

[Ray Strode <halfline src gnome org>]

commit d903a4a2cf8c88aa6a7bc8e0fd9fb42e98e259f7
Author: Ray Strode <rstrode redhat com>
Date:   Mon Jan 8 13:52:24 2018 -0500

    configure.ac: bump to 3.27.4

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index ea42c47..6b2ef7f 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,7 +1,7 @@
 
 AC_PREREQ([2.60])
 AC_INIT([gdm],
-        [3.27.3],
+        [3.27.4],
         [http://bugzilla.gnome.org/enter_bug.cgi?product=gdm])
 
 AC_CONFIG_SRCDIR([daemon/gdm-manager.c])