Remove unecessary non fatal error statement that very often is printed in the PSNR or SSIM metric n…

webrtc/tools/frame_analyzer/video_quality_analysis.cc

Index: webrtc/tools/frame_analyzer/video_quality_analysis.cc
diff --git a/webrtc/tools/frame_analyzer/video_quality_analysis.cc b/webrtc/tools/frame_analyzer/video_quality_analysis.cc
index 66ca469ecd587ac0e1ac98d4dc6c0b3325b6c249..0d1d651b7ff90efa300d89e274cc847ddd336f64 100644
--- a/webrtc/tools/frame_analyzer/video_quality_analysis.cc
+++ b/webrtc/tools/frame_analyzer/video_quality_analysis.cc
@@ -460,7 +460,7 @@ void PrintMaxRepeatedAndSkippedFrames(FILE* output,
       }
       continue;
     }
-    fprintf(stderr,
+    fprintf(output,
             "Found barcode %d in test video, which is not in reference video",
             it_test->first);
     return;