Enhance ldb_cmd_tool to enable user pass in customized cfds #12261
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Summary
The current implementation of the ldb_cmd tool involves commenting out the user-passed column_family_descriptors, resulting in the tool consistently constructing its column_family_descriptors from the pre-existing OPTIONS file.
The proposed fix prioritizes user-passed column family descriptors, ensuring they take precedence over those specified in the OPTIONS file. This modification enhances the tool's adaptability and responsiveness to user configurations.