Copy: Switch away from deprecated "2" suffix #452
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In v0.14.0 (released Aug 2022), restic has deprecated the copy command options with the "2" suffix (e.g., --repo2 / RESTIC_REPOSTORY2) in favor of the "RESTIC_FROM_" prefix. The old format is still supported, but new options will not be backported.
Notably, even restic does not (yet?) map all relevant options in its copy command. For instance, while the backup command supports RESTIC_REST_PASSWORD, the copy command does not consider RESTIC_FROM_REST_PASSWORD.