[gnome-builder] font-button: fix font styling

[Christian Hergert <chergert src gnome org>]

commit ecbae0ac61e55569a1dd48d74f23038c59747350
Author: Christian Hergert <chergert redhat com>
Date:   Sat Dec 5 16:01:04 2015 -0800

    font-button: fix font styling

 data/ui/ide-preferences-font-button.ui |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/data/ui/ide-preferences-font-button.ui b/data/ui/ide-preferences-font-button.ui
index 823e8e8..a474b92 100644
--- a/data/ui/ide-preferences-font-button.ui
+++ b/data/ui/ide-preferences-font-button.ui
@@ -26,6 +26,8 @@
         <child>
           <object class="GtkLabel" id="font_size">
             <property name="visible">true</property>
+            <property name="width-chars">4</property>
+            <property name="xalign">1.0</property>
             <style>
               <class name="dim-label"/>
             </style>