fossil: add mainProgram

+1
+1
pkgs/applications/version-management/fossil/default.nix
··· 66 license = licenses.bsd2; 67 maintainers = with maintainers; [ maggesi viric ]; 68 platforms = platforms.all; 69 }; 70 })
··· 66 license = licenses.bsd2; 67 maintainers = with maintainers; [ maggesi viric ]; 68 platforms = platforms.all; 69 + mainProgram = "fossil"; 70 }; 71 })