delta: explicitly set mainProgram

+1
+1
pkgs/applications/version-management/delta/default.nix
··· 54 changelog = "https://github.com/dandavison/delta/releases/tag/${version}"; 55 license = licenses.mit; 56 maintainers = with maintainers; [ marsam zowoq SuperSandro2000 figsoda ]; 57 }; 58 }
··· 54 changelog = "https://github.com/dandavison/delta/releases/tag/${version}"; 55 license = licenses.mit; 56 maintainers = with maintainers; [ marsam zowoq SuperSandro2000 figsoda ]; 57 + mainProgram = "delta"; 58 }; 59 }