Verify latest release

• I verified that the issue exists in the latest pnpm release

pnpm version

No response

Which area(s) of pnpm are affected? (leave empty if unsure)

No response

Link to the code that reproduces this issue or a replay of the bug

No response

Reproduction steps

Check the https://pnpm.io/ja/next/cli/instal documentation

Describe the Bug

It's clearly a valid flag and has a specific purpose, but there's no mention

Expected Behavior

Should be in the docs

Which Node.js version are you using?

Doesn't matter

Which operating systems have you used?

• macOS
• Windows
• Linux

If your OS is a Linux based, which one it is? (Include the version if relevant)

No response