[gnome-session] meson: bump to 3.27.91

[Ray Strode <halfline src gnome org>]

commit 4a9c2ff656185ded4778dd102ac3039d02613ba1
Author: Ray Strode <rstrode redhat com>
Date:   Tue Feb 20 14:35:54 2018 -0500

    meson: bump to 3.27.91

 meson.build |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/meson.build b/meson.build
index 01b2ece..ef1bdb1 100644
--- a/meson.build
+++ b/meson.build
@@ -1,6 +1,6 @@
 project(
   'gnome-session', 'c',
-  version: '3.27.90.1',
+  version: '3.27.91',
   license: 'GPL2+',
   default_options: 'buildtype=debugoptimized',
   meson_version: '>= 0.43.0'