[PATCH] D116353: [docs][llvm-profdata] Prefer double-dash long options

[Fangrui Song via Phabricator via llvm-commits]

MaskRay created this revision.
MaskRay added reviewers: ellis, kyulee, xur.
MaskRay requested review of this revision.
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Herald added a subscriber: llvm-commits.

To match the `--help` message and most other utilities.

While here, change `option:: -output=output` to `option:: --output=<output>` and
omit the value name for the short options (convention of other utilities).


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D116353

Files:
  llvm/docs/CommandGuide/llvm-profdata.rst

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