[meld] patchdialog: Fix copy-to-clipboard for pygobject port

[Kai Willadsen <kaiw src gnome org>]

commit c37789976eb8f8c260396ae11dfff7e2f7e839f0
Author: Kai Willadsen <kai willadsen gmail com>
Date:   Sun Oct 4 06:43:03 2015 +1000

    patchdialog: Fix copy-to-clipboard for pygobject port

 meld/patchdialog.py |    5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)
---
diff --git a/meld/patchdialog.py b/meld/patchdialog.py
index 6a1dbbd..171e99b 100644
--- a/meld/patchdialog.py
+++ b/meld/patchdialog.py
@@ -17,6 +17,7 @@
 import difflib
 import os
 
+from gi.repository import Gdk
 from gi.repository import Gtk
 from gi.repository import GtkSource
 
@@ -113,8 +114,8 @@ class PatchDialog(gnomeglade.Component):
 
             # Copy patch to clipboard
             if result == 1:
-                clip = Gtk.clipboard_get()
-                clip.set_text(txt)
+                clip = Gtk.Clipboard.get_default(Gdk.Display.get_default())
+                clip.set_text(txt, -1)
                 clip.store()
                 break
             # Save patch as a file