release: v1.3.0

[Lellansin]

Summary

Release scanf v1.3.0.

This minor release adds an explicit, backward-compatible way to detect when standard input has reached EOF. Existing scanf() and sscanf() return values remain unchanged, while callers that read from stdin can now use scanf.isEOF() to stop input loops reliably.

Changes

• Add scanf.isEOF() for detecting the EOF state of stdin.
• Distinguish a real EOF from empty input and format mismatches at the underlying readSync() boundary.
• Preserve the final input byte when redirected input does not end with a newline.
• Add the corresponding TypeScript declaration and README documentation.
• Add regression tests for EOF, empty lines, redirected input, and compatibility behavior.
• Bump the package version from 1.2.1 to 1.3.0.

Compatibility

• The existing scanf() and sscanf() interfaces and return values are unchanged.
• The implementation remains compatible with Node.js 4 and does not require Promises, iterators, or newer language features.
• Consumers can adopt scanf.isEOF() when needed without changing existing code.

Verification

• 135 tests pass on the current local Node.js version.
• 135 tests pass under Node.js 4.9.1.
• npm pack --dry-run succeeds and reports scanf@1.3.0.
• The feature PR passed the complete GitHub Actions matrix for Node.js 4 through 22.

Resolves #43.