feat(cut): add -w flag

[Yashwin-Sudarshan]

This PR closes #2174 and updates the cut utility specification.

[withfig-bot]

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Overview

src/cut.ts:

Info:

[withfig-bot]

Hello @Yashwin-Sudarshan,
thank you very much for creating a Pull Request!
Here is a small checklist to get this PR merged as quickly as possible:

• Do all subcommands / options which take arguments include the args property (args: {})?
• Are all options modular? E.g. -a -u -x instead of -aux
• Have all other checks passed?

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[Yashwin-Sudarshan]

recheck

[Yashwin-Sudarshan]

I have read the CLA Document and I hereby sign the CLA