openlog() expects parameter 3 to be long, string given in syslog_watchdog() (line 101

After each Run Cron

I get this

"

Warning: openlog() expects parameter 3 to be long, string given in syslog_watchdog() (line 101 of C:\wamp\www\backdropdev\core\modules\syslog\syslog.module).

"

Any ideas?