[gitg] Update libgit2-glib version

[Jesse van den Kieboom <jessevdk src gnome org>]

commit 6947c2a426663ac83ddbaa5c836e0f856390447d
Author: Jesse van den Kieboom <jessevdk gnome org>
Date:   Wed Dec 30 13:07:33 2015 +0100

    Update libgit2-glib version

 osx/Taps/gitg/libgit2-glib.rb |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/osx/Taps/gitg/libgit2-glib.rb b/osx/Taps/gitg/libgit2-glib.rb
index 6d6cc4d..d749d19 100644
--- a/osx/Taps/gitg/libgit2-glib.rb
+++ b/osx/Taps/gitg/libgit2-glib.rb
@@ -1,8 +1,8 @@
 class Libgit2Glib < Formula
   desc "Glib wrapper library around libgit2 git access library"
   homepage "https://github.com/GNOME/libgit2-glib";
-  url "https://download.gnome.org/sources/libgit2-glib/0.23/libgit2-glib-0.23.6.tar.xz";
-  sha256 "5c8d6b5cb81ab64b96cb0c52ef37463b6d8998a40ce77a08eda9db66fb781144"
+  url "https://download.gnome.org/sources/libgit2-glib/0.23/libgit2-glib-0.23.8.tar.xz";
+  sha256 "50853d1fbdabcdf67c14d3295a973c1c6f625b7d298459e494135a31984f140b"
 
   head do
     url "https://github.com/GNOME/libgit2-glib.git";