poll_for_returns returns customly formatted response

[zzzuzik]

Hello, thank you for the pepper

Could poll_for_returns returns a strict JSON format rather than a custom one for node in responded: yield None, "{{{}: {}}}".format( node, jid_ret['return'][0][node])

Otherwise usage of the --fail-if-incomplete is painful because it requires a custom parses of the pepper output.

Thank you again