[gedit] open-file button: add class image-button

[Sebastien Lafargue <slafargue src gnome org>]

commit 129beed4c6c95f54c62c13a8e5a270e21753fd45
Author: Sebastien Lafargue <slafargue gnome org>
Date:   Tue Sep 30 21:05:31 2014 +0200

    open-file button: add class image-button
    
    Now the button content is well padded.

 gedit/resources/ui/gedit-window.ui |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/gedit/resources/ui/gedit-window.ui b/gedit/resources/ui/gedit-window.ui
index 1853da3..d9201d2 100644
--- a/gedit/resources/ui/gedit-window.ui
+++ b/gedit/resources/ui/gedit-window.ui
@@ -41,6 +41,7 @@
                 <property name="use_popover">True</property>
                 <style>
                   <class name="text-button"/>
+                  <class name="image-button"/>
                 </style>
                 <child>
                   <object class="GtkBox" id="open_button_box">