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Kafka's commands has some options of single-dash (e.g. -daemon) and double-dash (e.g. --topic),
so this changes will make enable accept both option.

In addition to this, I think both support is helpful to find this option.
In my approach, it won't be shown up in help description, but a lot of software have version option with -version or --version.

Proposed Changes

• Add new class to show version information.
• Add code to kafka-run-class.sh to realize version option and run this class.

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