[libvirt] [PATCH v2] virsh: distinguish errors between missing argument and wrong option

[Guannan Ren]

On 02/20/2013 12:33 AM, Eric Blake wrote:
> On 02/19/2013 01:50 AM, Guannan Ren wrote:
>> Specifying ':' to suppress the error messages printed by getopt().
>> Then, distinguish the two types of errors.
>>
>> Before:
>>   # virsh -c
>>     virsh: option requires an argument -- 'c'
>>     error: unsupported option '-?'. See --help.
>>
>> After:
>>   # virsh -c
>>     error: option '-c' requires an argument
>>
>>   # virsh -x
>>     error: unsupported option '-x'. See --help.
> ACK.
>

    Thanks and pushed

    Guannan