Just by hiding -C/--context, -W/--width, --color from argparse unless
a related flag (-h/--help, -A/--annotate, etc) is found in sys.argv.
This is the same trick we use in test.py/bench.py/perf.py.
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In other news my litmus test that the scripts work was broken.
This does _not_ error if a script errors:
$ for f in scripts/*.py ; do $f --help ; done
An alternative that works is piping stdout to /dev/null, Python's
exceptions go to stderr by default:
$ for f in scripts/*.py ; do $f --help >/dev/null ; done
Christopher Haster
4fe8d96101