--pipe --retries

[Ole Tange]

I am considering if --pipe --retries will make sense.

The idea is here that if the spawned command fails, it will be re-run
with the same input.

One of the prices for that will be that GNU Parallel needs to keep a
copy of the --block in memory for each of the spawned processes.

If you can see a use for that, please elaborate how you would use it
and why --resume-failed will not be enough.

/Ole