[pitivi] Fixed a typo

[Alexandre Prokoudine <aprokoudine src gnome org>]

commit 758bc7fe6f224c69ba91931e0ee776d3c74ae27a
Author: Alexandre Prokoudine <alexandre prokoudine gmail com>
Date:   Sat Jan 22 06:39:03 2011 +0300

    Fixed a typo

 pitivi/ui/mainwindow.py |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/pitivi/ui/mainwindow.py b/pitivi/ui/mainwindow.py
index 0c05cc7..b365c9a 100644
--- a/pitivi/ui/mainwindow.py
+++ b/pitivi/ui/mainwindow.py
@@ -341,7 +341,7 @@ class PitiviMainWindow(gtk.Window, Loggable):
         self.actiongroup.add_actions(self.actions)
         self.actiongroup.add_toggle_actions(self.toggleactions)
         self.undock_action = gtk.Action("WindowizeViewer", _("Undock Viewer"),
-            _("Put the viewer in a serparate window"), None)
+            _("Put the viewer in a separate window"), None)
         self.actiongroup.add_action(self.undock_action)
 
         # deactivating non-functional actions