When attempting to copy snapshots between repos, --repo2 cli option doesn't exist but is documented

[FrankelJb]

I wanted to test rustic with an existing restic repo. I followed the documentation to copy from restic-repo to rustic-repo. I followed this documentation. However, it results in the error:

error: unexpected argument '--repo2' found

  tip: a similar argument exists: '--repo'

Usage: rustic copy --repository <REPOSITORY> [ID]...

I believe this functionality is incorrectly documented

[simonsan]

This should be fixed now.