- don't open debugger log file if no filename specified
- don't open debugger log file if no filename specified

dbrashear/bochs,dbrashear/bochs,dariaphoebe/bochs,dbrashear/bochs,dariaphoebe/bochs,dariaphoebe/bochs,dbrashear/bochs,dbrashear/bochs,dariaphoebe/bochs,dariaphoebe/bochs