Correctly escape wiki commit message characters

What does this MR do?

This is a Community contribution from @2knal. 🎉

Fixes #35478 (closed).

This MR passes false for the escapeParameters argument in sprintf, to prevent the HTML character entities which appear in the wiki commit message field from being escaped.

Does this MR meet the acceptance criteria?

Conformity

• Changelog entry
• [-] Documentation (if required)
• Code review guidelines
• Merge request performance guidelines
• Style guides
• [-] Database guides
• [-] Separation of EE specific content

Availability and Testing

• Review and add/update tests for this feature/bug. Consider all test levels. See the Test Planning Process.
• [-] Tested in all supported browsers