clippy happier

rust/src/util.rs

@@ -1,9 +1,10 @@
 pub trait LimitPrecision {
-    fn to_precision(self, presision: i32) -> Self;
+    fn to_precision(self, precision: i32) -> Self;
 }
 
 impl LimitPrecision for f32 {
     fn to_precision(self, precision: i32) -> Self {
-        (self * (10_f32).powi(precision)).round() / (10_f32).powi(precision)
+        let factor = 10_f32.powi(precision);
+        (self * factor).round() / factor
     }
-}
+}