b15e26f virsh: remove custom error for cpulist from cmdIOThreadPin

Authored and Committed by Ján Tomko 8 years ago
    virsh: remove custom error for cpulist from cmdIOThreadPin
    
    Instead of the custom error:
    error: iothreadpin: invalid cpulist.
    
    use vshCommandOptStringReq and let it report a more specific error:
    error: Failed to get option 'cpulist': Option argument is empty
    
        
file modified
+1 -3