Run rustfmt globally.

Using `$ cargo fmt` in the root. Closes #68.

beacon_chain/utils/active-validators/src/lib.rs

@@ -1,19 +1,15 @@
 extern crate types;
 
-use types::{
-    ValidatorRecord,
-    ValidatorStatus,
-};
+use types::{ValidatorRecord, ValidatorStatus};
 
 pub fn validator_is_active(v: &ValidatorRecord) -> bool {
     v.status == ValidatorStatus::Active as u8
 }
 
 /// Returns the indicies of each active validator in a given vec of validators.
-pub fn active_validator_indices(validators: &[ValidatorRecord])
-    -> Vec<usize>
-{
-    validators.iter()
+pub fn active_validator_indices(validators: &[ValidatorRecord]) -> Vec<usize> {
+    validators
+        .iter()
         .enumerate()
         .filter_map(|(i, validator)| {
             if validator_is_active(&validator) {
@@ -21,8 +17,7 @@ pub fn active_validator_indices(validators: &[ValidatorRecord])
             } else {
                 None
             }
-        })
-        .collect()
+        }).collect()
 }
 
 #[cfg(test)]