[gnome-control-center] printers: drop border of the "Add" new printer button

[Felipe Borges <felipeborges src gnome org>]

commit 72591c26ba80ac79f49bdd3afd57b71c28c9720e
Author: Felipe Borges <felipeborges gnome org>
Date:   Mon Mar 7 13:56:05 2016 +0100

    printers: drop border of the "Add" new printer button
    
    https://bugzilla.gnome.org/show_bug.cgi?id=763225

 panels/printers/new-printer-dialog.ui |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/panels/printers/new-printer-dialog.ui b/panels/printers/new-printer-dialog.ui
index b07b042..d8b96f2 100644
--- a/panels/printers/new-printer-dialog.ui
+++ b/panels/printers/new-printer-dialog.ui
@@ -61,6 +61,7 @@
                 <property name="visible">True</property>
                 <property name="can_focus">False</property>
                 <property name="show_tabs">False</property>
+                <property name="show_border">False</property>
                 <child>
                   <object class="GtkButton" id="new-printer-add-button">
                     <property name="label" translatable="yes">_Add</property>