[Samba] show the Debug messages in DEBUG(3, ("reply_mv : %s -> %s\n", name, newname))

[Hanping Lufei]

I am developing Samba source code,
I want to use command 
%smbd -F --debug=3 -l /usr/local/samba/var/
to log the debug information from some source code like:
DEBUG(3, ("reply_mv : %s -> %s\n",name,newname));
But I can not get them in log file

Any idea?

Lufei