It looks like projectIds was deprecated -- not sure when, but appears so (see https://cloud.google.com/logging/docs/api/reference/rest/v2/entries/list). It'll still work, so we're not in any major time crunch here, but we should swap out to using the resourceNames field when sending stuff to the API.

Ideally, this method would accept both projects, organizations, and generic resources. projects would just be prefixed with projects/, same for organizations, and resources just appended to the list of resource names where we assume that the person understands the format.

If we're going to swap the order of the parameters (ie, put organizations after projects) then this might be considered a breaking change :(