fix wording on panics in binary operators on RefCells"

src/libcore/cell.rs

@@ -885,7 +885,7 @@ impl<T:Default> Default for RefCell<T> {
 impl<T: ?Sized + PartialEq> PartialEq for RefCell<T> {
     /// # Panics
     ///
-    /// Panics if the value is currently mutably borrowed.
+    /// Panics if the value in either `RefCell` is currently borrowed.
     #[inline]
     fn eq(&self, other: &RefCell<T>) -> bool {
         *self.borrow() == *other.borrow()
@@ -899,39 +899,39 @@ impl<T: ?Sized + Eq> Eq for RefCell<T> {}
 impl<T: ?Sized + PartialOrd> PartialOrd for RefCell<T> {
     /// # Panics
     ///
-    /// Panics if the value is currently mutably borrowed.
+    /// Panics if the value in either `RefCell` is currently borrowed.
     #[inline]
     fn partial_cmp(&self, other: &RefCell<T>) -> Option<Ordering> {
         self.borrow().partial_cmp(&*other.borrow())
     }
 
     /// # Panics
     ///
-    /// Panics if the value is currently mutably borrowed.
+    /// Panics if the value in either `RefCell` is currently borrowed.
     #[inline]
     fn lt(&self, other: &RefCell<T>) -> bool {
         *self.borrow() < *other.borrow()
     }
 
     /// # Panics
     ///
-    /// Panics if the value is currently mutably borrowed.
+    /// Panics if the value in either `RefCell` is currently borrowed.
     #[inline]
     fn le(&self, other: &RefCell<T>) -> bool {
         *self.borrow() <= *other.borrow()
     }
 
     /// # Panics
     ///
-    /// Panics if the value is currently mutably borrowed.
+    /// Panics if the value in either `RefCell` is currently borrowed.
     #[inline]
     fn gt(&self, other: &RefCell<T>) -> bool {
         *self.borrow() > *other.borrow()
     }
 
     /// # Panics
     ///
-    /// Panics if the value is currently mutably borrowed.
+    /// Panics if the value in either `RefCell` is currently borrowed.
     #[inline]
     fn ge(&self, other: &RefCell<T>) -> bool {
         *self.borrow() >= *other.borrow()
@@ -942,7 +942,7 @@ impl<T: ?Sized + PartialOrd> PartialOrd for RefCell<T> {
 impl<T: ?Sized + Ord> Ord for RefCell<T> {
     /// # Panics
     ///
-    /// Panics if the value is currently mutably borrowed.
+    /// Panics if the value in either `RefCell` is currently borrowed.
     #[inline]
     fn cmp(&self, other: &RefCell<T>) -> Ordering {
         self.borrow().cmp(&*other.borrow())