Fixing syntax for --upload-results flag

tools/perf/generate_perf_json.py

 #!/usr/bin/env python
 # Copyright 2016 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 """Script to generate chromium.perf.json and chromium.perf.fyi.json in
 the src/testing/buildbot directory. Maintaining these files by hand is
 too unwieldy.
 """
 
@@ skipping 272 matching lines @@
 
 def generate_telemetry_test(tester_config, benchmark_name, browser):
   # The step name must end in 'test' or 'tests' in order for the
   # results to automatically show up on the flakiness dashboard.
   # (At least, this was true some time ago.) Continue to use this
   # naming convention for the time being to minimize changes.
 
   test_args = [
     benchmark_name,
     '-v',
-    '--upload_results',
+    '--upload-results',
     '--output-format=chartjson',
     '--browser=%s' % browser
   ]
   # When this is enabled on more than just windows machines we will need
   # --device=android
 
   step_name = benchmark_name
   if browser == 'reference':
     test_args.append('--output-trace-tag=_ref')
     step_name += '.reference'
@@ skipping 103 matching lines @@
 
 def main():
   waterfall = get_waterfall_config()
   fyi_waterfall = get_fyi_waterfall_config()
   generate_all_tests(fyi_waterfall, True)
   generate_all_tests(waterfall, False)
   return 0
 
 if __name__ == "__main__":
   sys.exit(main())