String fuzzStats() {
    return " / %5.2f%% valid %d/%d"
        .formatted((100.0 * validContainers) / totalContainers, validContainers, totalContainers);
  }
Constructs a new EofContainerSubCommand with the specified parent command.

@param parentCommand The parent command for this subcommand.
testfuzz/src/main/java/org/hyperledger/besu/testfuzz/EofContainerSubCommand.java