Fix documentation and formatting.

src/libcore/cmp.rs

@@ -483,7 +483,7 @@ pub trait Ord: Eq + PartialOrd<Self> {
     }
 
     /// Returns max if self is greater than max, and min if self is less than min.
-    /// Otherwise this will return self.  Panics if min > max.
+    /// Otherwise this will return self.
     ///
     /// # Examples
     ///
@@ -494,18 +494,16 @@ pub trait Ord: Eq + PartialOrd<Self> {
     /// assert!(0.clamp(-2, 1) == 0);
     /// assert!(2.clamp(-2, 1) == 1);
     /// ```
+    ///
+    /// # Panics
+    /// Panics if min > max.
     #[unstable(feature = "clamp", issue = "44095")]
     fn clamp(self, min: Self, max: Self) -> Self
     where Self: Sized {
         assert!(min <= max);
-        if self < min {
-            min
-        }
-        else if self > max {
-            max
-        } else {
-            self
-        }
+        if self < min { min }
+        else if self > max { max }
+        else { self }
     }
 }