Fix donation link

[MikeMcQuaid]

Fixes #23096

---

• Have you followed our Contributing guidelines?
• Have you checked for other open Pull Requests for the same change?
• Have you explained what your changes do? Performance claims (e.g. "this is faster") must include Hyperfine benchmarks.
• Have you explained why you'd like these changes included, not just what they do?
• For bug fixes, have you given step-by-step brew commands to reproduce the bug?
• Have you written new tests (excluding integration tests)? Here's an example.
• Have you successfully run brew lgtm (style, typechecking and tests) locally?

---

• AI was used to generate or assist with generating this PR.

OpenAI Codex 5.5 xhigh with local review and testing.

---

[Copilot]

Pull request overview

Updates Homebrew’s update-report donation prompt to point directly to the correct “Donations” section anchor in the Homebrew/brew README, and adds a regression spec to ensure the link stays correct.

Changes:

• Update the donation URL fragment from #donations to #-donations in donation_message.
• Add an RSpec example asserting the donation message output includes the corrected URL.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
Library/Homebrew/cmd/update-report.rb	Updates the donation prompt URL to use the correct README anchor (#-donations).
Library/Homebrew/test/cmd/update-report_spec.rb	Adds a regression test ensuring the donation message prints the corrected donations-section link.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.