[pitivi] layer: Make field local variable

[Alexandru Băluț <alexbalut src gnome org>]

commit 931421abb243c904944d75d703eb3e9509be880d
Author: Alexandru Băluț <alexandru balut gmail com>
Date:   Thu Oct 20 12:12:36 2016 +0200

    layer: Make field local variable
    
    Reviewed-by: Thibault Saunier <tsaunier gnome org>
    Differential Revision: https://phabricator.freedesktop.org/D1401

 pitivi/timeline/layer.py |    8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)
---
diff --git a/pitivi/timeline/layer.py b/pitivi/timeline/layer.py
index 8374c1a..b5a9817 100644
--- a/pitivi/timeline/layer.py
+++ b/pitivi/timeline/layer.py
@@ -90,10 +90,10 @@ class LayerControls(Gtk.EventBox, Loggable):
         vbox = Gtk.Box(orientation=Gtk.Orientation.VERTICAL)
         hbox.pack_start(vbox, True, True, 0)
 
-        self.sep = Gtk.Separator.new(Gtk.Orientation.VERTICAL)
-        self.sep.props.margin_top = ui.PADDING / 2
-        self.sep.props.margin_bottom = ui.PADDING / 2
-        hbox.pack_start(self.sep, False, False, 0)
+        rightside_separator = Gtk.Separator.new(Gtk.Orientation.VERTICAL)
+        rightside_separator.props.margin_top = ui.PADDING / 2
+        rightside_separator.props.margin_bottom = ui.PADDING / 2
+        hbox.pack_start(rightside_separator, False, False, 0)
 
         self.before_sep = SpacedSeparator(Gtk.PositionType.TOP)
         vbox.pack_start(self.before_sep, False, False, 0)