message: Changed sample code,  fixes
diff: @@ -52,7 +52,7 @@ void printUsage(char** argv)
  " for stitching materials under affine transformation, such as scans.\n"
  " --output <result_img>\n"
  " The default is 'result.jpg'.\n\n"
  - "Example usage :\n" << argv[0] << " --d3 --try_use_gpu yes --mode scans img1.jpg img2.jpg\n";
  + "Example usage :\n" << argv[0] << " --d3 --mode scans img1.jpg img2.jpg\n";
  }
  