documentation too general.

[peturingi]

Motivation and Context

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Description

Early in ZFS(8), a dataset is defined as an umbrella term containing:

• file system,
• volume,
• snapshot, and
• bookmark.

zfs rename does not work on bookmarks. The general term 'dataset' is ok to use, but only after it has been explicitly restricted.

How Has This Been Tested?

man the man page.

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Performance enhancement (non-breaking change which improves efficiency)
• Code cleanup (non-breaking change which makes code smaller or more readable)
• Quality assurance (non-breaking change which makes the code more robust against bugs)
• Breaking change (fix or feature that would cause existing functionality to change)
• Library ABI change (libzfs, libzfs_core, libnvpair, libuutil and libzfsbootenv)
• Documentation (a change to man pages or other documentation)

Checklist:

• My code follows the OpenZFS code style requirements.
• I have updated the documentation accordingly.
• I have read the contributing document.
  - [ ] I have added tests to cover my changes.
  - [ ] I have run the ZFS Test Suite with this change applied.
• All commit messages are properly formatted and contain Signed-off-by.