[gitg] window: put Clone and Add into a size group so they have the same size

[Ignacio Casal Quinteiro <icq src gnome org>]

commit 6ff930879ee2d78abced2614fd4bc842829c37c3
Author: Ignacio Casal Quinteiro <icq gnome org>
Date:   Mon Feb 8 17:22:51 2016 +0100

    window: put Clone and Add into a size group so they have the same size

 gitg/resources/ui/gitg-window.ui |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)
---
diff --git a/gitg/resources/ui/gitg-window.ui b/gitg/resources/ui/gitg-window.ui
index 7ad43e0..115b957 100644
--- a/gitg/resources/ui/gitg-window.ui
+++ b/gitg/resources/ui/gitg-window.ui
@@ -297,4 +297,11 @@
       </object>
     </child>
   </template>
+  <object class="GtkSizeGroup">
+    <property name="mode">horizontal</property>
+    <widgets>
+      <widget name="d_clone_button"/>
+      <widget name="d_add_button"/>
+    </widgets>
+  </object>
 </interface>