add semicolon

Author: hkBst

library/std/src/f64.rs

@@ -332,8 +332,8 @@ impl f64 {
     /// let abs_difference = (x.powf(2.0) - (x * x)).abs();
     /// assert!(abs_difference < 1e-10);
     ///
-    /// assert_eq!(f64::powf(1.0, f64::NAN), 1.0)
-    /// assert_eq!(f64::powf(f64::NAN, 0.0), 1.0)
+    /// assert_eq!(f64::powf(1.0, f64::NAN), 1.0);
+    /// assert_eq!(f64::powf(f64::NAN, 0.0), 1.0);
     /// ```
     #[rustc_allow_incoherent_impl]
     #[must_use = "method returns a new number and does not mutate the original value"]