I understand and sympathize with why this was added here, but the fact
is that this kind of warning is clutter that is going to make it harder
to understand this man page overall; this is not the place to document
internal implementation details of the format of URL keys and more than
it would be the place to document how WORM keys mangle and truncate
filenames, or how the extension of a SHAnE key is chosen. I see that
it did get documented better in backends.mdwn, which is a good place
to document it.
The chance that someone is going to have the same misunderstanding and
happen to see this warning does not justify confusing everyone else
with a warning that is really out of place in this documentation.
Added --json-error-messages option, which includes error messages in the
json output, rather than outputting them to stderr.
The actual rediretion of errors is not implemented yet, this is only
the docs and option plumbing.
This commit was supported by the NSF-funded DataLad project.