func cmd_jobs_stop(conn *scrapinghub.Connection, args []string, flags *PFlags) {
if len(args) < 1 {
log.Fatalf("Missing argument: <job_id>\n")
}
var jobs scrapinghub.Jobs
job_id := args[0]
err := jobs.Stop(conn, job_id)
if err != nil {
log.Fatalf("stop error: %s\n", err)
} else {
fmt.Printf("Stopped job: %s\n", job_id)
}
}