fixed whitespace error

modules/python/src2/cv2.cpp

@@ -138,7 +138,7 @@ typedef Ptr<StereoSGBM> Ptr_StereoSGBM;
 typedef Ptr<cv::softcascade::ChannelFeatureBuilder> Ptr_ChannelFeatureBuilder;
 typedef Ptr<CLAHE> Ptr_CLAHE;
 typedef Ptr<LineSegmentDetector > Ptr_LineSegmentDetector;
- 
+
 typedef SimpleBlobDetector::Params SimpleBlobDetector_Params;
 
 typedef cvflann::flann_distance_t cvflann_flann_distance_t;