style: add missing space

[Planeshifter]

Description

What is the purpose of this pull request?

This pull request:

• Follow-up fixes for commits merged to develop between 2026-10-10 13:40 UTC and 2026-10-11 11:40 UTC (b0d4e5961, 80dc97e06, bec39c087).

math/base/special/betaincinv

• Add missing space before || after stdlib_base_is_nan( b ) in the merged NaN-return condition introduced in 80dc97e, in lib/node_modules/@stdlib/math/base/special/betaincinv/src/main.c, to conform to stdlib C style.

Related Issues

Does this pull request have any related issues?

No.

Questions

Any questions for reviewers of this pull request?

No.

Other

Any other information relevant to this pull request? This may include screenshots, references, and/or implementation notes.

Validation

• Checked: stdlib style guide compliance (two independent passes, compared against stats/base/dists/beta/cdf and stats/base/dists/f/pdf), plus a bug and logic scan of the union diff (two independent passes). That covers the stats/base/dists/f/cdf C implementation brought in by the merge, the betaincinv clean-up, and the erlang/quantile test description. None of these passes found a bug. The f/cdf C implementation matches lib/main.js.
• Excluded: anything requiring interpretation. One finding was dropped: opts shadowing in f/cdf/benchmark/benchmark.native.js. no-shadow is disabled in the stdlib ESLint config, and the pattern appears in more than 300 native benchmarks.

Checklist

Please ensure the following tasks are completed before submitting this pull request.

• Read, understood, and followed the contributing guidelines.

AI Assistance

When authoring the changes proposed in this PR, did you use any kind of AI assistance?

• Yes
• No

If you answered "yes" above, how did you use AI assistance?

• Code generation (e.g., when writing an implementation or fixing a bug)
• Test/benchmark generation
• Documentation (including examples)
• Research and understanding

Disclosure

If you answered "yes" to using AI assistance, please provide a short disclosure indicating how you used AI assistance. This helps reviewers determine how much scrutiny to apply when reviewing your contribution. Example disclosures: "This PR was written primarily by Claude Code." or "I consulted ChatGPT to understand the codebase, but the proposed changes were fully authored manually by myself.".

This PR was written primarily by Claude Code as part of an automated review of recent commits to develop. It is opened as a draft for maintainer audit.

---

🤖 Generated with Claude Code

https://claude.ai/code/session_014KjU5G4g6BbpSNmfp9nm75

---

Generated by Claude Code

[stdlib-bot]

Coverage Report

Package	Statements	Branches	Functions	Lines
math/base/special/betaincinv	$\\color{green}187/187$ $\\color{green}+100.00\\%$	$\\color{green}15/15$ $\\color{green}+100.00\\%$	$\\color{green}2/2$ $\\color{green}+100.00\\%$	$\\color{green}187/187$ $\\color{green}+100.00\\%$

The above coverage report was generated for the changes in this PR.