## Description
Closes: #9404
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## Description
+ fixing `x/bank/migrations/v44.migrateDenomMetadata` - we could potentially put a wrong data in a new key if the old keys have variable length.
+ linting the code
Putting in the same PR because i found the issue when running a linter.
Depends on: #10112
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### Author Checklist
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- [x] followed the guidelines for [building modules](https://github.com/cosmos/cosmos-sdk/blob/master/docs/building-modules)
- [ ] included the necessary unit and integration [tests](https://github.com/cosmos/cosmos-sdk/blob/master/CONTRIBUTING.md#testing)
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## Description
<!-- Add a description of the changes that this PR introduces and the files that
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This pull request is a follow-up pull request for #9246 that adds documentation for the `simd testnet` command.
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Before we can merge this PR, please make sure that all the following items have been
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- [ ] Code follows the [module structure standards](https://github.com/cosmos/cosmos-sdk/blob/master/docs/building-modules/structure.md).
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- [x] Updated relevant documentation (`docs/`) or specification (`x/<module>/spec/`)
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Julien Robert
Robert Zaremba
Andrea Giacobino
Ryan Christoffersen
SaReN