[gdm] configure: bump to 3.17.90

[Ray Strode <halfline src gnome org>]

commit f23c92882a36e359656e52b2e331982b4bd34c11
Author: Ray Strode <rstrode redhat com>
Date:   Mon Aug 24 12:54:51 2015 -0400

    configure: bump to 3.17.90

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index c2d2520..5af59ed 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,7 +1,7 @@
 
 AC_PREREQ([2.60])
 AC_INIT([gdm],
-        [3.17.4],
+        [3.17.90],
         [http://bugzilla.gnome.org/enter_bug.cgi?product=gdm])
 
 AC_CONFIG_SRCDIR([daemon/gdm-manager.c])