Fix formatting and warnings, re-enable other benches.

benches/bench.rs

@@ -111,7 +111,9 @@ mod public_key_set_benches {
                         (i, sig)
                     }).collect();
                 b.iter(|| {
-                    pk_set.combine_signatures(&sigs).expect("could not combine signatures");
+                    pk_set
+                        .combine_signatures(&sigs)
+                        .expect("could not combine signatures");
                 })
             },
             &TEST_THRESHOLDS,
@@ -126,6 +128,6 @@ mod public_key_set_benches {
 }
 
 criterion_main!(
-    //poly_benches::poly_benches,
+    poly_benches::poly_benches,
     public_key_set_benches::public_key_set_benches
 );