Avoid argparse abbreviations
The argparse
Python module by default allow command line flags to be
abbreviated to their shortest unambiguous prefix, see
https://docs.python.org/3/library/argparse.html#allow-abbrev
This means that when the missing s
for the --dowstreams
never got
noticed as argparse
was able to figure it out anyway.
Let's not rely on magic behavior and use the correct flag.