Gerrit label processing: include job name and id in debug logs
Gerrit label processing: include job name and id in debug logs

We are seeing very strange behavior of gerrit label processing, that the value for label 'prow.k8s.io/gerrit-patchset' is a whitespace. The only place this value being set is https://github.com/kubernetes/test-infra/blob/cdbc8651410c316098479c03fbf54d22fe6db8b8/prow/gerrit/adapter/adapter.go#L306, and 'strconv.Itoa' technically should never return a whitespace. The current log doesn't tell which prowjob it is from and made it hard to debug, add these fields in debug message to help debug

BenTheElder/test-infra,dims/test-infra,dims/test-infra,BenTheElder/test-infra,dims/test-infra,cblecker/test-infra,jessfraz/test-infra,fejta/test-infra,fejta/test-infra,cjwagner/test-infra,BenTheElder/test-infra,cblecker/test-infra,kubernetes/test-infra,jessfraz/test-infra,monopole/test-infra,monopole/test-infra,jessfraz/test-infra,BenTheElder/test-infra,michelle192837/test-infra,cjwagner/test-infra,pwittrock/test-infra,fejta/test-infra,cjwagner/test-infra,kubernetes/test-infra,cjwagner/test-infra,cjwagner/test-infra,dims/test-infra,monopole/test-infra,jessfraz/test-infra,michelle192837/test-infra,cblecker/test-infra,fejta/test-infra,dims/test-infra,michelle192837/test-infra,kubernetes/test-infra,cjwagner/test-infra,cblecker/test-infra,dims/test-infra,pwittrock/test-infra,kubernetes/test-infra,kubernetes/test-infra,BenTheElder/test-infra,pwittrock/test-infra,monopole/test-infra,michelle192837/test-infra,cblecker/test-infra,pwittrock/test-infra,kubernetes/test-infra,pwittrock/test-infra,fejta/test-infra,monopole/test-infra,cblecker/test-infra,monopole/test-infra,jessfraz/test-infra,michelle192837/test-infra,fejta/test-infra,jessfraz/test-infra,BenTheElder/test-infra,michelle192837/test-infra