updated zero_div_zero.rs

clippy_lints/src/zero_div_zero.rs

@@ -38,8 +38,8 @@ fn check_expr(&mut self, cx: &LateContext, expr: &Expr) {
             // do something like 0.0/(2.0 - 2.0), but it would be nice to warn on that case too.
             let Some(Constant::Float(ref lhs_value, lhs_width)) = constant_simple(left),
             let Some(Constant::Float(ref rhs_value, rhs_width)) = constant_simple(right),
-            let Some(0.0) = lhs_value.parse().ok(),
-            let Some(0.0) = rhs_value.parse().ok()
+            let Ok(0.0) = lhs_value.parse(),
+            let Ok(0.0) = rhs_value.parse()
         ], {
             // since we're about to suggest a use of std::f32::NaN or std::f64::NaN,
             // match the precision of the literals that are given.