nix run nixpkgs#silver-searcher -- -G '\.nix$' -0l 'description.*"[Aa]n?' pkgs \ | xargs -0 nix run nixpkgs#gnused -- -i '' -Ee 's/(description.*")[Aa]n? (.)/\1\U\2/'
https://github.com/cucumber/cucumber-ruby/releases/tag/v9.2.0 https://github.com/cucumber/cucumber-ruby/compare/v9.1.0...v9.2.0