   ///   allocated storage, which can be a useful optimization
   ///   when `self` is going to be grown again.
   public mutating func removeAll(keepCapacity keepCapacity: Bool = false) {
-    withMutableCharacters { (inout v: CharacterView) in v.removeAll(keepCapacity: keepCapacity) }
+    withMutableCharacters {
+      (inout v: CharacterView) in v.removeAll(keepCapacity: keepCapacity)
+    }
   }
 }
 #if _runtime(_ObjC)

  ///
  /// - complexity: O(`count(self)`).
  public mutating func removeRange(subRange: Range<Index>) {
    withMutableCharacters { (inout v: CharacterView) in v.removeRange(subRange) }
  }

  /// Remove all characters.

  ///
  /// - complexity: O(`count(self)`).
  public mutating func insert(newElement: Character, atIndex i: Index) {
    withMutableCharacters {
      (inout v: CharacterView) in v.insert(newElement, atIndex: i)
    }
  }

  /// Insert `newElements` at index `i`
