Fix copy/paste typos in noxfile comments (#6831)
Fix copy/paste typos in noxfile comments (#6831)


googleapis/google-cloud-python,GoogleCloudPlatform/gcloud-python,tswast/google-cloud-python,tseaver/google-cloud-python,tseaver/google-cloud-python,tswast/google-cloud-python,tswast/google-cloud-python,tseaver/google-cloud-python,googleapis/google-cloud-python,GoogleCloudPlatform/gcloud-python