in pkg/controller/topictransfer/topictransfer_controller.go [462:473]
func buildDeleteSourceClusterTopicCommand(topic string, sourceCluster string, nameServer string) string {
cmdOpts := []string{
"deletetopic",
"-t",
topic,
"-c",
sourceCluster,
"-n",
nameServer,
}
return strings.Join(cmdOpts, " ")
}