Macro combu::default_description

macro_rules! default_description {
    (flag.help) => { ... };
    (flag.version) => { ... };
    (flag.authors) => { ... };
    (flag.license) => { ... };
    (flag.yes) => { ... };
    (flag.no) => { ... };
    ($ident : ident.flag) => { ... };
}

Default description for presets.