Fix digest calculation for frozen strings

[DanielePalombo]

Replaces the << string append operator with + for concatenation.

The << operator modifies a string in-place, which can raise a RuntimeError if the initial string is frozen, as is common in newer Ruby versions. Using + creates a new string, ensuring compatibility and preventing potential errors.

Summary by CodeRabbit

• Refactor
  • Improved string concatenation method for generating digests, ensuring more consistent and reliable behavior. No changes to user-facing features.

[coderabbitai]

Walkthrough

The update adds a frozen string literal magic comment and refactors the self.digest method in lib/deface/override.rb to replace the mutating inject with << operator by a non-mutating map and join approach for concatenating override digests. The output hexdigest remains unchanged.

Changes

File	Change Summary
lib/deface/override.rb	Added frozen string literal comment; replaced inject with << by map and join in self.digest method

Poem

🐇✨ Frozen strings now lead the way,
No more mutating strings at play.
Digests gather, joined with care,
A cleaner path through code we share.
Hop along, the changes gleam—
In Ruby’s garden, fresh and clean! 🌿

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📥 Commits

Reviewing files that changed from the base of the PR and between 2cbc23f and fac30b0.

📒 Files selected for processing (1)

• lib/deface/override.rb (2 hunks)

🚧 Files skipped from review as they are similar to previous changes (1)

• lib/deface/override.rb

✨ Finishing Touches

• 📝 Generate Docstrings

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