title: Is there a way to use the cfg(feature) check on multiple statements?
body: <p>Is there a way to minimize the following feature check?</p>
  
  <pre><code>#[cfg(feature = "eugene")]
  pub mod eugene_set_steam_id;
  #[cfg(feature = "eugene")]
  pub mod eugene_balance;
  #[cfg(feature = "eugene")]
  pub mod eugene_force_map;
  #[cfg(feature = "eugene")]
  pub mod eugene_rating;
  #[cfg(feature = "eugene")]
  pub mod eugene_stat;
  #[cfg(feature = "eugene")]
  pub mod eugene_steam_id;
  #[cfg(feature = "eugene")]
  pub mod eugene_top;
  </code></pre>
  
  <p>To something like:</p>
  
  <pre><code>#[cfg(feature = "eugene")] {
      pub mod eugene_set_steam_id;
      pub mod eugene_balance;
      pub mod eugene_force_map;
      pub mod eugene_rating;
      pub mod eugene_stat;
      pub mod eugene_steam_id;
      pub mod eugene_top;
  }
  </code></pre>
  
  <p>This would better convey meaning and be more ergonomic.</p>