Initialized glog in polydrivetrain.py

Change-Id: I21d53481ef01d4bfc99eccef9a0141f71006401f
diff --git a/y2015/control_loops/python/polydrivetrain.py b/y2015/control_loops/python/polydrivetrain.py
index 9a5b48b..29a55a6 100755
--- a/y2015/control_loops/python/polydrivetrain.py
+++ b/y2015/control_loops/python/polydrivetrain.py
@@ -412,8 +412,6 @@
 
 
 def main(argv):
-  argv = FLAGS(argv)
-
   vdrivetrain = VelocityDrivetrain()
 
   if not FLAGS.plot:
@@ -515,4 +513,6 @@
   return 0
 
 if __name__ == '__main__':
-  sys.exit(main(sys.argv))
+  argv = FLAGS(sys.argv)
+  glog.init()
+  sys.exit(main(argv))