List blocks that may have changed since a given era

Usage: era_invalidate [OPTIONS] --written-since <ERA> <INPUT>

Arguments:
  <INPUT>  Specify the input device

Options:
  -h, --help                 Print help
      --metadata-snapshot    Use the metadata snapshot rather than the current superblock
  -o, --output <FILE>        Specify the output file rather than stdout
  -V, --version              Print version
      --written-since <ERA>  Blocks written since the given era will be listed