[Bug-ddrescue] Feature request: Print drive size even if drive name is available

[Christian Franke]

Hi,

it is very useful that the drive name+serial is printed on --ask if 
known. But unfortunately the size is no longer printed then.

An additional size info would be in particular useful when a partition 
is addressed (e.g. /dev/sda3) instead of the whole drive. At least on 
Linux and Windows, HDIO_GET_IDENTITY or similar report name and serial 
of the underlying physical drive in this case.

This could for example be used to verify that sizes are equal if a 
partition is copied to another disk.

Thanks,
Christian