'strict' resends if any values failed #11
Description
if 'strict' is set and at least one value fails with bulk_send (for example, because the trapper item for it does not exist), zabbix::sender tries two more times - and it sends all the values again.
this is probably not very useful (those items are unlikely to appear immediately after sending failed), and it results in 3 values being sent for all the working items.
it might be better to only retry on network connection error, not in cases when zabbix response indicates some failure.
additionally, the documentation does not seem to talk about retries, but i might have missed it :)