doc: add warning about Python argparse in flux-jobs(1) #6285
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Problem: There's a quirk in the Python argparse implementation that causes a required option argument that has a leading dash to be ignored when a space between long option and its argument is used instead of an equals. This is common with the
flux jobs --since
option because relative FSD is allowed so-1h
,-30m
, etc are expected option arguments. This can be very confusing to users who may not have an inkling of what's going on.Add a note in the flux-jobs(1) man page regarding this quirk in hopes users will see and become aware of it. Suggest that
=
always be used between--since
and its argument to avoid the problem.