Fixed bad parameter passing in compare_videos.py

BUG=http://crbug.com/254932
R=kjellander@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/1733004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@4272 4adac7df-926f-26a2-2b94-8c16560cd09d

webrtc/tools/compare_videos.py

@@ -92,7 +92,7 @@ def main():
   cmd = [
     options.frame_analyzer,
     '--reference_file=%s' % options.ref_video,
-    '--test_file=%s' % options.ref_video,
+    '--test_file=%s' % options.test_video,
     '--stats_file=%s' % options.stats_file,
     '--width=%d' % options.yuv_frame_width,
     '--height=%d' % options.yuv_frame_height,