- Tidy markup. [1] - Remove mention of an unimplemented option. - Clarify the behavior of pmcstat when logging PMCs are   requested, but no log output file is specified. - Add a cross-reference to pmclog(3). - Bump document date.
- Tidy markup. [1]
- Remove mention of an unimplemented option.
- Clarify the behavior of pmcstat when logging PMCs are
  requested, but no log output file is specified.
- Add a cross-reference to pmclog(3).
- Bump document date.

Reviewed by:	ru
Submitted by:	ru [1]
Approved by:	re (blanket hwpmc)

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