[Bug-ddrescue] Option to stop copy at first error

[Narcis Garcia]

I've read the letter entitled "Dealing with a disk that stops
responding" from Olaf Buddenhagen, and I have same situation with a
S.ATA disk: rest of blocks are annotated as

My feature request is to add an option to stop ddrescue action when a
new read error is found, having the opportunity of shutting down
computer and continue copy in a new session.

$ ddrescue -n -N /dev/sda /dev/sdb map.log

In the meanwhile, may be some alternative to cut mapfile properly?