/// `VecStringExt` implements convenient methods to extract a `Vec<String>` from
/// any `Vec<&str>` type.
pubtraitVecStringExt{fnto_vec_string(self)->Vec<String>;}implVecStringExt forVec<&str>{fnto_vec_string(self)->Vec<String>{self.iter().map(|item|String::from(*item)).collect()}}