fix: wrap RangeError messages with format

[Planeshifter]

Description

What is the purpose of this pull request?

This pull request:

• wraps two RangeError throws in @stdlib/ndarray/at with format(...). The current code passes printf-style positional arguments directly to the RangeError constructor, which silently discards them, so the thrown message contains literal %s and %u placeholders instead of the array shape and the index count.

@stdlib/ndarray/at

lib/main.js lines 69 and 71 throw RangeError for "Insufficient arguments" and "Too many arguments". Both messages contain %s and %u format specifiers and pass sh.join(',') and nargs as trailing arguments to new RangeError(...), but the Error constructor only consumes the first argument as the message. The trailing arguments are dropped, and the user sees the literal placeholders.

The fix wraps each message in format(...), matching the canonical pattern. The format module is already imported at line 27 and used for the TypeError throws on lines 63 and 77 in the same function, so no new dependency is introduced. Format-wrapped error construction is the convention in 114 of 115 throwing siblings in the @stdlib/ndarray/* namespace (~99% conformance).

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?

No test assertions check the error message text — test/test.js only verifies the error constructor type — so the fix does not affect test expectations. No downstream consumers in @stdlib/ndarray string-match the affected messages.

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

This PR was authored by Claude Code as part of an automated cross-package drift-detection routine over the @stdlib/ndarray namespace. The drift was identified by structural and pattern-based analysis of error-construction conventions across the 136 sibling packages and confirmed by two independent automated validation passes (semantic review and cross-reference review of tests, examples, REPL docs, type declarations, and downstream consumers). A human will audit and promote the PR out of draft.

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@stdlib-js/reviewers

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Generated by Claude Code

[stdlib-bot]

Coverage Report

Package	Statements	Branches	Functions	Lines
ndarray/at	$\\color{green}140/140$ $\\color{green}+100.00\\%$	$\\color{green}15/15$ $\\color{green}+100.00\\%$	$\\color{green}1/1$ $\\color{green}+100.00\\%$	$\\color{green}140/140$ $\\color{green}+100.00\\%$

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