Merge #3568

3568: Haddock failure workaround r=amesgen a=amesgen

The Haddock documentation CRON job started failing on Nov 16 due to #3467, as the `-- *`s are interpreted as Haddock sections headings which are invalid in this place. Inserting extra spaces (like in many other cases in the codebase) resolves the issue.

Co-authored-by: Alexander Esgen <[email protected]>

Author: iohk-bors[bot]