| Index: tools/clang/scripts/update.py
 | 
| diff --git a/tools/clang/scripts/update.py b/tools/clang/scripts/update.py
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| index b2b74c08ce5ed640f10ddba8889b9ade4796f383..a97dbe39bfb3c74a0d6f6098613dcbe2cd6a8d08 100755
 | 
| --- a/tools/clang/scripts/update.py
 | 
| +++ b/tools/clang/scripts/update.py
 | 
| @@ -847,7 +847,7 @@ def main():
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|                        help='print current clang version (e.g. x.y.z) and exit.')
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|    parser.add_argument('--run-tests', action='store_true',
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|                        help='run tests after building; only for local builds')
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| -  parser.add_argument('--extra-tools', '--tools', nargs='*',
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| +  parser.add_argument('--extra-tools', '--tools', nargs='*', default=[],
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|                        help='select additional chrome tools to build')
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|    parser.add_argument('--without-android', action='store_false',
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|                        help='don\'t build Android ASan runtime (linux only)',
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| 
 |