Error when Etcd snapshot restore fails when incorrect file is entered can be made better

[sowmyav27]

RKE version:
1.1.14-rc1

Steps to Reproduce:

• Do an RKE up
• Enable recurring snapshots in the cluster.yml
• Wait for an hour for a snapshot to happen
• restore from this snapshot. I gave 2021-01-08T21:16:56Z_etcd.zip instead of 2021-01-08T21:16:56Z_etcd
• The restore failed with this error

FATA[0049] [etcd] Failed to restore etcd snapshot: Failed to run etcd restore container, exit status is: 1, container logs: {"level":"info","ts":1610140906.894002,"caller":"snapshot/v3_snapshot.go:287","msg":"restoring snapshot","path":"/opt/rke/etcd-snapshots/2021-01-08T21:16:56Z_etcd.zip","wal-dir":"/opt/rke/etcd-snapshots-restore/member/wal","data-dir":"/opt/rke/etcd-snapshots-restore/","snap-dir":"/opt/rke/etcd-snapshots-restore/member/snap"}
Error: snapshot missing hash but --skip-hash-check=false 

Expected Results:
Can this fail with a better error message? This makes the cluster go bad also.