Macro abscissa::status_attr_err

macro_rules! status_attr_err {
    ($attr:expr, $msg:expr) => { ... };
    ($attr: expr, $fmt:expr, $($arg:tt)+) => { ... };
}

Print a tab-delimited status attribute (in red if colors are enabled)

// Print an error attribute to STDERR
status_attr_err!("error", "yep");