Solr create collection command needs -force

[grugnog]

The documented command fails:

» kubectl --context minikube -n ckan-cloud exec $SOLRCLOUD_POD_NAME -- \
>     bin/solr create_collection -c ${CKAN_NAMESPACE} -d ckan_default -n ckan_default
WARNING: Creating cores as the root user can cause Solr to fail and is not advisable. Exiting.
         If you started Solr as root (not advisable either), force core creation by adding argument -force
command terminated with exit code 1

When running it with force, however it proceeds normally:

kubectl --context minikube -n ckan-cloud exec $SOLRCLOUD_POD_NAME -- bin/solr create_collection -c ${CKAN_NAMESPACE} -d ckan_default -n ckan_default -force