[Bug-ddrescue] Write test option

[Paul Daniels]

**NOTE**  I'm well aware that no one is going to guarantee the safety of 
the data with a test like this. I'm asking for an option, not an 
endorsement.

With some drives ( not many ) I do find that they'll read fine but their 
write ability is damaged.  With ddrescue I modified the 
check_identical() function in main.cc to not abort when  I do ddrescue 
-v -f -X0 -P16 /dev/sdc /dev/sdc readwritetest.log

So far it seems to work, the data remains intact.

Would it be possible to have a --write-test option that'll allow you to 
bypass the "Infile and outfile are them same" test ?


Regards,

Paul.