code: func (ds *DNSServer) qualifySrvHosts(srvs []SRVRecord) []SRVRecord {
  	newsrvs := []SRVRecord{}
  
  	for _, srv := range srvs {
  		newsrvs = append(newsrvs, SRVRecord{
  			Host: ds.qualifyHost(srv.Host),
  			Port: srv.Port,
  		})
  	}
  
  	return newsrvs
  }
docs: // rewrites supplied host entries to use the domain this dns server manages