kernel: watchdog: Time since last watchdog

Hi all,

I want to see the message

kernel: watchdog: Time since last watchdog

is no longersent to the syslogserver

I have already tried the KB  "http://kb.juniper.net/InfoCenter/index?page=content&id=KB20945" but without success

show configuration system syslog
user * {
any emergency;
}
host x.x.x.x {
any any;
port 514;
structured-data;
}
host x.x.x.x {
any any;
port 514;
}
file messages {
any notice;
authorization info;
match "!.*Time since last watchdog strob.*";
}
file interactive-commands {
interactive-commands any;
}

show configuration security log
mode stream;
format sd-syslog;
source-address x.x.x.x;
stream Syslog_xy {
format syslog;
host {
x.x.x.x
port 514;
}
}
stream Syslog_yx {
format syslog;
host {
x.x.x.x;
port 514;
}
}

Does somebody has any idea