Fix benchmarks

Author: vks

benches/distributions.rs

@@ -208,7 +208,7 @@ distr_int!(distr_binomial_small, u64, Binomial::new(1000000, 1e-30).unwrap());
 distr_int!(distr_poisson, u64, Poisson::new(4.0).unwrap());
 distr!(distr_bernoulli, bool, Bernoulli::new(0.18));
 distr_arr!(distr_circle, [f64; 2], UnitCircle);
-distr_arr!(distr_sphere_surface, [f64; 3], UnitSphereSurface);
+distr_arr!(distr_sphere, [f64; 3], UnitSphere);
 
 // Weighted
 distr_int!(distr_weighted_i8, usize, WeightedIndex::new(&[1i8, 2, 3, 4, 12, 0, 2, 1]).unwrap());