fix: stabilize par help text in manpages

[thepastaclaw]

fix: stabilize par help text in manpages

Issue being fixed or feature implemented

Regenerating manpages currently records the local machine's CPU count in the
-par and -parbls help text. That makes otherwise unrelated release
manpage regeneration change those entries depending on which machine generated
the pages.

What was done?

Updated the -par and -parbls help text to avoid printing the dynamic lower
bound derived from GetNumCores().

Runtime behavior is unchanged: negative values still mean "leave that many
cores free", 0 still auto-detects, and the existing max/default values remain
documented. The checked-in dashd and dash-qt manpages were updated to match
the new stable generated text.

How Has This Been Tested?

Tested on macOS arm64:

git diff --check
python3 -m py_compile contrib/devtools/gen-manpages.py
rg -n -e '\\fB\\-[0-9]+\\fR to' doc/man/dashd.1 doc/man/dash-qt.1

The grep command returned no matches, confirming the affected generated
manpages no longer contain a CPU-count-specific lower bound.

Also ran a pre-PR code review gate against the exact worktree diff:

Recommendation: ship

Note: this worktree did not have configured Dash Core build artifacts and
help2man is not installed locally, so I did not rerun full manpage generation
from rebuilt binaries here. The manpage edits mirror the changed src/init.cpp
help text.

Breaking Changes

None.

Checklist

• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have added or updated relevant unit/integration/functional/e2e tests
• I have made corresponding changes to the documentation
• I have assigned this pull request to a milestone (for repository
  code-owners and collaborators only)

[thepastaclaw]

@coderabbitai review

[thepastaclaw]

✅ Review complete (commit 4e5cc4b)

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Review finished.

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✅ No Merge Conflicts Detected

This PR currently has no conflicts with other open PRs.

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No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Repository UI

Review profile: CHILL

Plan: Pro

Run ID: 947d3633-bb33-45da-aee8-48acc9d9eeb6

📥 Commits

Reviewing files that changed from the base of the PR and between cdcf00a and 4e5cc4b.

📒 Files selected for processing (3)

• doc/man/dash-qt.1
• doc/man/dashd.1
• src/init.cpp

---

Walkthrough

The help text for -par and -parbls options is updated in src/init.cpp and both man pages (dash-qt.1, dashd.1). The prior wording described a numeric range (e.g., -12 to 15); the new wording uses a standardized format: 0 = auto, negative values reserve that many cores, with explicit maximum caps (15 for -par, 33 for -parbls) and default of 0.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly summarizes the main change: stabilizing par help text in manpages.
Description check	✅ Passed	The description accurately matches the changes to stabilize -par and -parbls help text and update the manpages.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

---

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[PastaPastaPasta]

utACK 4e5cc4b

[thepastaclaw]

Code Review

Verified PR #7394 at exact head SHA 4e5cc4b. The diff is limited to stabilizing the -par and -parbls help/manpage text, the generated manpage entries match src/init.cpp, and the runtime parsing still supports auto, negative values, and max clamping as documented.

Note: posted as a COMMENT review because GitHub does not allow approving my own PR.