Remove a leftover debug print and fix a typo.

src/sugar/activity/activity.py

@@ -566,7 +566,6 @@ class Activity(Window, gtk.Container):
         client.will_quit(True)
 
     def __sm_quit_cb(self, client):
-        print 'sm quit'
         self.close(force=True)
 
     def __canvas_map_cb(self, canvas):

src/sugar/session.py

@@ -36,7 +36,7 @@ class SessionManager(object):
         self.session.connect('shutdown_completed',
                              self.__shutdown_completed_cb)
 
-    def initiate_shutdown(self, ):
+    def initiate_shutdown(self):
         self.session.initiate_shutdown()
 
     def shutdown_completed(self):