Bug: nats_jetstream input has a logic error in the stream check

[maxarndt]

In nats_jetstream input processor, I cannot use the stream option without subject set.

Acording to the docs this should work:

benthos/website/docs/components/inputs/nats_jetstream.md

Lines 190 to 192 in 88c01d1

	### `stream`
	A stream to consume from. Either a subject or stream must be specified.

Reproduction

input:
  nats_jetstream:
    urls: [nats://srv:port]
    stream: "somestream"

Error:

ERRO Service closing due to: failed to init input path root.input: subject is empty @service=benthos

Solution

I'm going to open a PR. Hope this helps.

Edit: here it is #2577