[pitivi] prefs: Make sure the broom icon has no space to the right

[Alexandru Băluț <alexbalut src gnome org>]

commit 70e99c4b86c3033ce2ce61b626972e47b216031c
Author: Alexandru Băluț <alexandru balut gmail com>
Date:   Fri Sep 16 23:28:18 2016 +0200

    prefs: Make sure the broom icon has no space to the right
    
    Reviewed-by: Jakub Brindza <jakub brindza gmail com>
    Differential Revision: https://phabricator.freedesktop.org/D1323

 pitivi/dialogs/prefs.py |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/pitivi/dialogs/prefs.py b/pitivi/dialogs/prefs.py
index e57e4c3..caa1f4f 100644
--- a/pitivi/dialogs/prefs.py
+++ b/pitivi/dialogs/prefs.py
@@ -288,7 +288,7 @@ class PreferencesDialog(Loggable):
         contents_box = Gtk.Box()
         contents_box.pack_start(title_label, True, True, 0)
         contents_box.pack_start(accel_label, True, False, 0)
-        contents_box.pack_start(button, True, True, 0)
+        contents_box.pack_start(button, False, False, 0)
 
         return contents_box